diff --git a/.gitmodules b/.gitmodules
index bfd3c08e51..62fbb8293a 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -9,7 +9,7 @@
 	url = https://gitee.com/xmzrzk/benchmark.git
 [submodule "modules/mavlink"]
 	path = modules/mavlink
-	url = https://gitee.com/xmzrzk/mavlink
+	url = https://gitee.com/xmzrzk/mavlink.git
 [submodule "gtest"]
 	path = modules/gtest
 	url = https://gitee.com/xmzrzk/googletest