diff --git a/src/misc/util/utilColor.c b/src/misc/util/utilColor.c
index 42988b0ce..cf0194bde 100644
--- a/src/misc/util/utilColor.c
+++ b/src/misc/util/utilColor.c
@@ -19,6 +19,8 @@
 ***********************************************************************/
 
 #include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
 #include "misc/util/abc_global.h"