diff --git a/async.h b/async.h
index 2ef0e21..3ebea4e 100644
--- a/async.h
+++ b/async.h
@@ -90,6 +90,7 @@ typedef struct redisAsyncContext {
 
 /* Functions that proxy to hiredis */
 redisAsyncContext *redisAsyncConnect(const char *ip, int port);
+redisAsyncContext *redisAsyncConnectUnix(const char *path);
 int redisAsyncSetReplyObjectFunctions(redisAsyncContext *ac, redisReplyObjectFunctions *fn);
 int redisAsyncSetConnectCallback(redisAsyncContext *ac, redisConnectCallback *fn);
 int redisAsyncSetDisconnectCallback(redisAsyncContext *ac, redisDisconnectCallback *fn);