diff --git a/src/freedombone-utils-web b/src/freedombone-utils-web
index 1e52ce2c..55831eed 100755
--- a/src/freedombone-utils-web
+++ b/src/freedombone-utils-web
@@ -485,6 +485,10 @@ function install_dynamicdns {
         return
     fi
 
+    if grep -q "INADYN_COMMIT" "$COMPLETION_FILE"; then
+        sed -i '/INADYN_COMMIT/d' "$COMPLETION_FILE"
+    fi
+
     CURR_INADYN_COMMIT=$(get_completion_param "inadyn commit")
     echo "************ 3 $CURR_INADYN_COMMIT $INADYN_COMMIT"
     if [[ "${CURR_INADYN_COMMIT}" == "${INADYN_COMMIT}" ]]; then