diff --git a/src/server/internalServer.cpp b/src/server/internalServer.cpp
index 1536e86e6..1513f95a8 100644
--- a/src/server/internalServer.cpp
+++ b/src/server/internalServer.cpp
@@ -415,6 +415,7 @@ InternalServer::InternalServer(Library* library,
   m_addr(addr),
   m_port(port),
   m_root(normalizeRootUrl(root)),
+  m_rootWithSeparator(m_root + "/"),
   m_nbThreads(nbThreads),
   m_multizimSearchLimit(multizimSearchLimit),
   m_verbose(verbose),
@@ -519,7 +520,7 @@ MHD_Result InternalServer::handlerCallback(struct MHD_Connection* connection,
     printf("full_url  : %s\n", fullUrl);
   }
 
-  const auto url = fullURL2LocalURL(fullUrl, m_root + "/");
+  const auto url = fullURL2LocalURL(fullUrl, m_rootWithSeparator);
   RequestContext request(connection, m_root, url, method, version);
 
   if (m_verbose.load() ) {
diff --git a/src/server/internalServer.h b/src/server/internalServer.h
index c3990c44d..f00dfe8fb 100644
--- a/src/server/internalServer.h
+++ b/src/server/internalServer.h
@@ -164,6 +164,7 @@ class InternalServer {
     std::string m_addr;
     int m_port;
     std::string m_root;
+    std::string m_rootWithSeparator;
     int m_nbThreads;
     unsigned int m_multizimSearchLimit;
     std::atomic_bool m_verbose;