diff --git a/test/color.t.cpp b/test/color.t.cpp
index 897f3ca..7c849b9 100644
--- a/test/color.t.cpp
+++ b/test/color.t.cpp
@@ -26,6 +26,7 @@
 
 #include <cmake.h>
 #include <iostream>
+#include <stdio.h>
 #include <stdlib.h>
 #include <Color.h>
 #include <test.h>