1 files changed, 1 insertions, 0 deletions

diff --git a/c/defs.h b/c/defs.h
index f5feb3e..d4504ed 100644
--- a/c/defs.h
+++ b/c/defs.h
@@ -1,6 +1,7 @@
 #ifndef DEFS_H
 #define DEFS_H
 
+#include <windows.h>
 #include <commctrl.h>
 
 /* common.c */