diff --git a/ext/standard/streamsfuncs.c b/ext/standard/streamsfuncs.c
index 7c4beb31286..df29974952f 100644
--- a/ext/standard/streamsfuncs.c
+++ b/ext/standard/streamsfuncs.c
@@ -311,7 +311,7 @@ PHP_FUNCTION(stream_socket_sendto)
 	php_stream *stream;
 	zval *zstream;
 	long flags = 0;
-	char *data, *target_addr;
+	char *data, *target_addr = NULL;
 	int datalen, target_addr_len = 0;
 	php_sockaddr_storage sa;
 	socklen_t sl = 0;