diff --git a/cbs.h b/cbs.h
index ede7146..2ec6247 100644
--- a/cbs.h
+++ b/cbs.h
@@ -52,7 +52,7 @@ enum pkg_config_flags {
 	PC_STATIC = 1 << 3,
 };
 
-void cbsinit(int, char **);
+static void cbsinit(int, char **);
 static void rebuild(const char *); /* Always call via macro wrapper */
 #define rebuild() rebuild(__FILE__)