diff --git a/utils.cpp b/utils.cpp
index 1da9602..04488b2 100644
--- a/utils.cpp
+++ b/utils.cpp
@@ -113,7 +113,7 @@
                                       "GetSubTreePaths");
     method.append(objectPath.c_str());
     method.append(0); // Depth 0 to search all
-    method.append(std::vector<std::string>({interface.c_str()}));
+    method.append(std::vector<std::string>({interface}));
     auto reply = bus.call(method);
 
     reply.read(paths);