diff --git a/src/redis.h b/src/redis.h
index 7c0da22e..f331b281 100644
--- a/src/redis.h
+++ b/src/redis.h
@@ -797,7 +797,7 @@ void backgroundSaveDoneHandler(int statloc);
 int getObjectSaveType(robj *o);
 
 /* AOF persistence */
-void flushAppendOnlyFile(void);
+void flushAppendOnlyFile(int force);
 void feedAppendOnlyFile(struct redisCommand *cmd, int dictid, robj **argv, int argc);
 void aofRemoveTempFile(pid_t childpid);
 int rewriteAppendOnlyFileBackground(void);