diff --git a/src/mergerfs_webui.cpp b/src/mergerfs_webui.cpp
index a809dd7e..0ac72dbf 100644
--- a/src/mergerfs_webui.cpp
+++ b/src/mergerfs_webui.cpp
@@ -347,6 +347,7 @@ _post_kvs_key(const httplib::Request &req_,
       std::string key;
       std::string val;
 
+      fmt::print(req_.body);
       j = json::parse(req_.body);
       key = req_.path_params.at("key");
       val = j;