diff -r 1262b5433644 -r 8d3047f78190 src/main/java/de/uapcore/lightpit/AbstractLightPITServlet.java
--- a/src/main/java/de/uapcore/lightpit/AbstractLightPITServlet.java	Sun May 17 15:24:58 2020 +0200
+++ b/src/main/java/de/uapcore/lightpit/AbstractLightPITServlet.java	Sun May 17 16:00:13 2020 +0200
@@ -166,8 +166,10 @@
                                 || DataAccessObjects.class.isAssignableFrom(param);
                     }
                     if (paramsInjectible) {
-                        final String requestPath = "/" + mapping.get().requestPath()
-                                + (mapping.get().menuKey().isBlank() ? "" : "/");
+                        String requestPath = "/" + mapping.get().requestPath();
+                        if (!mapping.get().requestPath().isBlank() && !mapping.get().menuKey().isBlank()) {
+                            requestPath += "/";
+                        }
 
                         if (mappings
                                 .computeIfAbsent(mapping.get().method(), k -> new HashMap<>())