diff --git a/dunst.c b/dunst.c
index 4a904cd..fd8e456 100644
--- a/dunst.c
+++ b/dunst.c
@@ -41,6 +41,10 @@
 
 #define DEFFONT "Monospace-11"
 
+#ifndef VERSION
+#define VERSION 0
+#endif
+
 #define MSG 1
 #define INFO 2
 #define DEBUG 3