diff --git a/src/util.c b/src/util.c
index 56dd6c6d39521772898aed4bc15a6cac274727ab..1cf9bcd4451a3292bc90edb7083cee5be6583a6d 100644
--- a/src/util.c
+++ b/src/util.c
@@ -28,6 +28,7 @@
 #include <string.h>
 #include <stdlib.h>
 #include <ncurses.h>
+#include <stdarg.h>
 #include <locale.h>
 
 int winrows, wincols;