diff --git a/src/common/imagiff.cpp b/src/common/imagiff.cpp
index e852c4f645..432982552a 100644
--- a/src/common/imagiff.cpp
+++ b/src/common/imagiff.cpp
@@ -34,6 +34,10 @@
 #include "wx/log.h"
 #include "wx/intl.h"
 
+#if wxUSE_PALETTE
+    #include "wx/palette.h"
+#endif // wxUSE_PALETTE
+
 #include <stdlib.h>
 #include <string.h>