diff --git a/MagickCore/string_.h b/MagickCore/string_.h
index e615039..589c3be 100644
--- a/MagickCore/string_.h
+++ b/MagickCore/string_.h
@@ -22,8 +22,6 @@
 extern "C" {
 #endif
 
-#include <stdarg.h>
-#include <time.h>
 #include "MagickCore/exception.h"
 
 typedef struct _StringInfo