diff --git a/agent.sh b/agent.sh
index b349bf9..bf18561 100644
--- a/agent.sh
+++ b/agent.sh
@@ -119,7 +119,7 @@ function main {
         delete_volume "$@"
         ;;
     "Config")
-        metadata_config
+        metadata_service
         ;;
     *)
         echo "action : ${fonction} not known !"
diff --git a/files/metadata.sh b/files/metadata.sh
index 94d7057..612dd18 100644
--- a/files/metadata.sh
+++ b/files/metadata.sh
@@ -12,6 +12,6 @@ echo "start metadata ${NETNS} "
 
 exec ip netns exec "${NETNS}" \
   /usr/bin/metadata \
-    -file "/opt/metadata/${arg}.json" \
+    -file "/opt/metadata/${arg}.conf" \
     -interface "${IP}" \
     -port "${PORT}"
\ No newline at end of file