diff --git a/source/blender/blenlib/intern/rand.c b/source/blender/blenlib/intern/rand.c
index 7657cec8cfd..a03b236b5c6 100644
--- a/source/blender/blenlib/intern/rand.c
+++ b/source/blender/blenlib/intern/rand.c
@@ -33,6 +33,7 @@
 #include <stdlib.h>
 #include <string.h>
 #include <math.h>
+#include <time.h>
 
 #include "MEM_guardedalloc.h"