diff --git a/jdk/src/share/native/sun/awt/medialib/mlib_sys.c b/jdk/src/share/native/sun/awt/medialib/mlib_sys.c
index e78e118c969..70d052051fd 100644
--- a/jdk/src/share/native/sun/awt/medialib/mlib_sys.c
+++ b/jdk/src/share/native/sun/awt/medialib/mlib_sys.c
@@ -29,6 +29,8 @@
 #ifdef MACOSX
 #include <unistd.h>
 #include <sys/param.h>
+#else
+#include <malloc.h>
 #endif
 #include <mlib_types.h>
 #include <mlib_sys_proto.h>