diff --git a/MagickCore/vision.c b/MagickCore/vision.c
index 9c315fb..912f1a4 100644
--- a/MagickCore/vision.c
+++ b/MagickCore/vision.c
@@ -466,11 +466,11 @@
Initialize connected components image attributes.
*/
assert(image != (Image *) NULL);
- assert(image->signature == MagickSignature);
+ assert(image->signature == MagickCoreSignature);
if (image->debug != MagickFalse)
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
assert(exception != (ExceptionInfo *) NULL);
- assert(exception->signature == MagickSignature);
+ assert(exception->signature == MagickCoreSignature);
component_image=CloneImage(image,image->columns,image->rows,MagickTrue,
exception);
if (component_image == (Image *) NULL)