diff --git a/backend/emf.c b/backend/emf.c
index 018c0f45..73854e05 100644
--- a/backend/emf.c
+++ b/backend/emf.c
@@ -35,7 +35,9 @@
 #include <stdio.h>
 #include <string.h>
 #include <math.h>
+#ifdef _MSC_VER
 #include <malloc.h>
+#endif
 #include "common.h"
 #include "emf.h"