diff --git a/MagickCore/nt-base.c b/MagickCore/nt-base.c
index 0efb1b0..268b8d6 100644
--- a/MagickCore/nt-base.c
+++ b/MagickCore/nt-base.c
@@ -241,7 +241,7 @@
   return(0);
 }
 
-#if !defined(__MINGW32__)
+#if \!defined(__MINGW32__) && \!defined(__MINGW64__)
 /*
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 %                                                                             %