diff --git a/trunk/auto/coverage.sh b/trunk/auto/coverage.sh
index 55cb7ce46..c211243ea 100644
--- a/trunk/auto/coverage.sh
+++ b/trunk/auto/coverage.sh
@@ -39,7 +39,9 @@ ret=$?; if [[ $ret -ne 0 ]]; then echo "Cook gcov files failed, ret=$ret"; exit
 #       https://codecov.io/gh/ossrs/srs/src/20fbb4466fdc8ba5d810b8570df6004063212838/trunk/src/protocol/srs_rtmp_stack.cpp
 # Remark: It takes a few minutes to sync with github, so it might not available when CircleCI is done.
 #       https://circleci.com/gh/ossrs/srs/tree/3.0release
+#
+# Note: Use '-X gcov' to avoid generate the gcov files again.
 cd $workdir &&
 export CODECOV_TOKEN="493bba46-c468-4e73-8b45-8cdd8ff62d96" &&
-bash <(curl -s https://codecov.io/bash) &&
+bash <(curl -s https://codecov.io/bash) -X gcov &&
 echo "Done" && exit 0