diff --git a/MagickCore/accelerate.h b/MagickCore/accelerate.h
index 0338287..578cc66 100644
--- a/MagickCore/accelerate.h
+++ b/MagickCore/accelerate.h
@@ -22,7 +22,7 @@
 extern "C" {
 #endif
 
-#include <MagickCore/morphology.h>
+#include "MagickCore/morphology.h"
 
 extern MagickExport MagickBooleanType
   AccelerateConvolveImage(const Image *,const KernelInfo *,Image *,
diff --git a/MagickCore/attribute.h b/MagickCore/attribute.h
index aac4678..5986bc9 100644
--- a/MagickCore/attribute.h
+++ b/MagickCore/attribute.h
@@ -22,8 +22,8 @@
 extern "C" {
 #endif
 
-#include <MagickCore/image.h>
-#include <MagickCore/exception.h>
+#include "MagickCore/image.h"
+#include "MagickCore/exception.h"
 
 extern MagickExport ImageType
   GetImageType(const Image *,ExceptionInfo *);
diff --git a/MagickCore/color.h b/MagickCore/color.h
index b2a4899..1ec1831 100644
--- a/MagickCore/color.h
+++ b/MagickCore/color.h
@@ -22,8 +22,8 @@
 extern "C" {
 #endif
 
-#include <MagickCore/pixel.h>
-#include <MagickCore/exception.h>
+#include "MagickCore/pixel.h"
+#include "MagickCore/exception.h"
 
 typedef enum
 {
diff --git a/MagickCore/colormap-private.h b/MagickCore/colormap-private.h
index 1651834..474784d 100644
--- a/MagickCore/colormap-private.h
+++ b/MagickCore/colormap-private.h
@@ -22,9 +22,9 @@
 extern "C" {
 #endif
 
-#include <MagickCore/image.h>
-#include <MagickCore/color.h>
-#include <MagickCore/exception-private.h>
+#include "MagickCore/image.h"
+#include "MagickCore/color.h"
+#include "MagickCore/exception-private.h"
 
 static inline Quantum ConstrainColormapIndex(Image *image,const size_t index,
   ExceptionInfo *exception)
diff --git a/MagickCore/colorspace-private.h b/MagickCore/colorspace-private.h
index fb5d84a..0d4116f 100644
--- a/MagickCore/colorspace-private.h
+++ b/MagickCore/colorspace-private.h
@@ -22,10 +22,10 @@
 extern "C" {
 #endif
 
-#include <MagickCore/image.h>
-#include <MagickCore/image-private.h>
-#include <MagickCore/pixel.h>
-#include <MagickCore/pixel-accessor.h>
+#include "MagickCore/image.h"
+#include "MagickCore/image-private.h"
+#include "MagickCore/pixel.h"
+#include "MagickCore/pixel-accessor.h"
 
 static inline void ConvertRGBToCMYK(PixelInfo *pixel)
 {
diff --git a/MagickCore/constitute.h b/MagickCore/constitute.h
index a251d06..1807f5d 100644
--- a/MagickCore/constitute.h
+++ b/MagickCore/constitute.h
@@ -22,7 +22,7 @@
 extern "C" {
 #endif
 
-#include <MagickCore/pixel.h>
+#include "MagickCore/pixel.h"
 
 extern MagickExport Image
   *ConstituteImage(const size_t,const size_t,const char *,const StorageType,
diff --git a/MagickCore/decorate.h b/MagickCore/decorate.h
index 49b7672..63416f3 100644
--- a/MagickCore/decorate.h
+++ b/MagickCore/decorate.h
@@ -22,7 +22,7 @@
 extern "C" {
 #endif
 
-#include <MagickCore/image.h>
+#include "MagickCore/image.h"
 
 typedef struct _FrameInfo
 {
diff --git a/MagickCore/distribute-cache.h b/MagickCore/distribute-cache.h
index 669f462..32d5bb8 100644
--- a/MagickCore/distribute-cache.h
+++ b/MagickCore/distribute-cache.h
@@ -22,7 +22,7 @@
 extern "C" {
 #endif
 
-#include <MagickCore/exception.h>
+#include "MagickCore/exception.h"
 
 extern MagickExport void
   PixelCacheServer(const size_t,ExceptionInfo *);
diff --git a/MagickCore/effect.h b/MagickCore/effect.h
index e5cc7d4..ed68cfe 100644
--- a/MagickCore/effect.h
+++ b/MagickCore/effect.h
@@ -22,7 +22,7 @@
 extern "C" {
 #endif
 
-#include <MagickCore/morphology.h>
+#include "MagickCore/morphology.h"
 
 typedef enum
 {
diff --git a/MagickCore/gem.h b/MagickCore/gem.h
index de0a28a..151bc41 100644
--- a/MagickCore/gem.h
+++ b/MagickCore/gem.h
@@ -22,8 +22,8 @@
 extern "C" {
 #endif
 
-#include <MagickCore/fx.h>
-#include <MagickCore/random_.h>
+#include "MagickCore/fx.h"
+#include "MagickCore/random_.h"
 
 extern MagickExport double
   ExpandAffine(const AffineMatrix *);
diff --git a/MagickCore/image.h b/MagickCore/image.h
index 1f2d62c..8534c4a 100644
--- a/MagickCore/image.h
+++ b/MagickCore/image.h
@@ -22,8 +22,8 @@
 extern "C" {
 #endif
 
-#include <MagickCore/color.h>
-#include <MagickCore/pixel.h>
+#include "MagickCore/color.h"
+#include "MagickCore/pixel.h"
 
 #define OpaqueAlpha  ((Quantum) QuantumRange)
 #define TransparentAlpha  ((Quantum) 0)
diff --git a/MagickCore/layer.h b/MagickCore/layer.h
index 8330378..845a8b2 100644
--- a/MagickCore/layer.h
+++ b/MagickCore/layer.h
@@ -22,7 +22,7 @@
 extern "C" {
 #endif
 
-#include <MagickCore/composite.h>
+#include "MagickCore/composite.h"
 
 typedef enum
 {
diff --git a/MagickCore/monitor-private.h b/MagickCore/monitor-private.h
index 1e864cf..e31270c 100644
--- a/MagickCore/monitor-private.h
+++ b/MagickCore/monitor-private.h
@@ -22,7 +22,7 @@
 extern "C" {
 #endif
 
-#include <MagickCore/image.h>
+#include "MagickCore/image.h"
 
 static inline MagickBooleanType SetImageProgress(const Image *image,
   const char *tag,const MagickOffsetType offset,const MagickSizeType extent)
diff --git a/MagickCore/morphology-private.h b/MagickCore/morphology-private.h
index b1f2675..978ac2e 100644
--- a/MagickCore/morphology-private.h
+++ b/MagickCore/morphology-private.h
@@ -26,7 +26,7 @@
 }
 #endif
 
-#include <MagickCore/morphology.h>
+#include "MagickCore/morphology.h"
 
 extern MagickPrivate Image
   *MorphologyApply(const Image *,const MorphologyMethod,const ssize_t,
diff --git a/MagickCore/morphology.h b/MagickCore/morphology.h
index 541b2d8..5d8239f 100644
--- a/MagickCore/morphology.h
+++ b/MagickCore/morphology.h
@@ -22,7 +22,7 @@
 extern "C" {
 #endif
 
-#include <MagickCore/geometry.h>
+#include "MagickCore/geometry.h"
 
 typedef enum
 {
diff --git a/MagickCore/pixel-accessor.h b/MagickCore/pixel-accessor.h
index e323ed4..f54e055 100644
--- a/MagickCore/pixel-accessor.h
+++ b/MagickCore/pixel-accessor.h
@@ -23,12 +23,12 @@
 #endif
 
 #include <math.h>
-#include <MagickCore/cache.h>
-#include <MagickCore/cache-view.h>
-#include <MagickCore/color.h>
-#include <MagickCore/colorspace.h>
-#include <MagickCore/gem.h>
-#include <MagickCore/image.h>
+#include "MagickCore/cache.h"
+#include "MagickCore/cache-view.h"
+#include "MagickCore/color.h"
+#include "MagickCore/colorspace.h"
+#include "MagickCore/gem.h"
+#include "MagickCore/image.h"
 
 #undef index
 
diff --git a/MagickCore/pixel.h b/MagickCore/pixel.h
index 1eedf7e..6c4918f 100644
--- a/MagickCore/pixel.h
+++ b/MagickCore/pixel.h
@@ -22,7 +22,7 @@
 extern "C" {
 #endif
 
-#include <MagickCore/colorspace.h>
+#include "MagickCore/colorspace.h"
 
 #define MaxPixelChannels  32
 #undef index
diff --git a/MagickCore/policy.h b/MagickCore/policy.h
index 2d36d46..4cef101 100644
--- a/MagickCore/policy.h
+++ b/MagickCore/policy.h
@@ -22,8 +22,8 @@
 extern "C" {
 #endif
 
-#include <MagickCore/pixel.h>
-#include <MagickCore/exception.h>
+#include "MagickCore/pixel.h"
+#include "MagickCore/exception.h"
 
 typedef enum
 {
diff --git a/MagickCore/resample.h b/MagickCore/resample.h
index 9eb8cbf..5d41711 100644
--- a/MagickCore/resample.h
+++ b/MagickCore/resample.h
@@ -22,7 +22,7 @@
 extern "C" {
 #endif
 
-#include <MagickCore/cache-view.h>
+#include "MagickCore/cache-view.h"
 
 /*
   WARNING:  The order of this table must also match the order of a table
diff --git a/MagickCore/signature-private.h b/MagickCore/signature-private.h
index 0935079..d2cdd3a 100644
--- a/MagickCore/signature-private.h
+++ b/MagickCore/signature-private.h
@@ -24,7 +24,7 @@
 
 #define MagickSignatureSize  64
 
-#include <MagickCore/string_.h>
+#include "MagickCore/string_.h"
 
 typedef struct _SignatureInfo
   SignatureInfo;
diff --git a/MagickCore/string-private.h b/MagickCore/string-private.h
index bad3af5..bd08be8 100644
--- a/MagickCore/string-private.h
+++ b/MagickCore/string-private.h
@@ -22,7 +22,7 @@
 extern "C" {
 #endif
 
-#include <MagickCore/locale_.h>
+#include "MagickCore/locale_.h"
 
 static inline double SiPrefixToDoubleInterval(const char *string,
   const double interval)
diff --git a/MagickCore/thread-private.h b/MagickCore/thread-private.h
index 90b6580..4b1234d 100644
--- a/MagickCore/thread-private.h
+++ b/MagickCore/thread-private.h
@@ -22,9 +22,9 @@
 extern "C" {
 #endif
 
-#include <MagickCore/cache.h>
-#include <MagickCore/resource_.h>
-#include <MagickCore/thread_.h>
+#include "MagickCore/cache.h"
+#include "MagickCore/resource_.h"
+#include "MagickCore/thread_.h"
 
 /*
   Single threaded unless workload justifies the threading overhead.
diff --git a/MagickCore/xml-tree-private.h b/MagickCore/xml-tree-private.h
index e95876b..cb1a1be 100644
--- a/MagickCore/xml-tree-private.h
+++ b/MagickCore/xml-tree-private.h
@@ -22,8 +22,8 @@
 extern "C" {
 #endif
 
-#include <MagickCore/exception.h>
-#include <MagickCore/splay-tree.h>
+#include "MagickCore/exception.h"
+#include "MagickCore/splay-tree.h"
 
 extern MagickPrivate char
   *CanonicalXMLContent(const char *,const MagickBooleanType);