diff --git a/MagickCore/random.c b/MagickCore/random.c
index 7940702e66..47b03255e8 100644
--- a/MagickCore/random.c
+++ b/MagickCore/random.c
@@ -607,7 +607,8 @@ static StringInfo *GenerateEntropicChaos(RandomInfo *random_info)
 %    o random_info: the random info.
 %
 */
-MagickExport double GetPseudoRandomValue(RandomInfo *random_info)
+MagickExport double GetPseudoRandomValue(
+  RandomInfo *magick_restrict random_info)
 {
 #define RandomROTL(x,k) (((x) << (k)) | ((x) >> (64-(k))))
 
diff --git a/MagickCore/random_.h b/MagickCore/random_.h
index 53dfdd1bdb..d72ff6a7f3 100644
--- a/MagickCore/random_.h
+++ b/MagickCore/random_.h
@@ -35,7 +35,7 @@ typedef struct _RandomInfo
 */
 extern MagickExport double
   GetRandomValue(RandomInfo *),
-  GetPseudoRandomValue(RandomInfo *);
+  GetPseudoRandomValue(RandomInfo *magick_restrict);
 
 extern MagickExport RandomInfo
   *AcquireRandomInfo(void),