diff --git a/MagickCore/MagickCore.h b/MagickCore/MagickCore.h
index 535176da78..7f02faa4a3 100644
--- a/MagickCore/MagickCore.h
+++ b/MagickCore/MagickCore.h
@@ -47,6 +47,9 @@ extern "C" {
 #  undef inline
 # endif
 #endif
+#if __cplusplus > 199711L
+#define register
+#endif
 
 #define MAGICKCORE_CHECK_VERSION(major,minor,micro) \
   ((MAGICKCORE_MAJOR_VERSION > (major)) || \
diff --git a/MagickWand/MagickWand.h b/MagickWand/MagickWand.h
index 935e2cd4f2..c509e95cee 100644
--- a/MagickWand/MagickWand.h
+++ b/MagickWand/MagickWand.h
@@ -47,6 +47,9 @@ extern "C" {
 #  undef inline
 # endif
 #endif
+#if __cplusplus > 199711L
+#define register
+#endif
 
 #define MAGICKWAND_CHECK_VERSION(major,minor,micro) \
   ((MAGICKWAND_MAJOR_VERSION > (major)) || \