diff --git a/src/mergerfs_webui.cpp b/src/mergerfs_webui.cpp
index 903192cd..605fbb37 100644
--- a/src/mergerfs_webui.cpp
+++ b/src/mergerfs_webui.cpp
@@ -269,7 +269,8 @@ _get_kv(const httplib::Request &req_,
   if(not req_.has_param("mount"))
     {
       res_.status = 400;
-      res_.set_content("mount param not set", "text/plain");
+      res_.set_content("mount param not set",
+                       "text/plain");
       return;
     }