diff --git a/src/modules/custom.cpp b/src/modules/custom.cpp
index 4c57f963..3029a68f 100644
--- a/src/modules/custom.cpp
+++ b/src/modules/custom.cpp
@@ -49,7 +49,7 @@ void waybar::modules::Custom::continuousWorker()
       pclose(fp);
       thread_.stop();
       output_ = { 1, "" };
-      std::cerr << name_ " just stopped, is it endless?" << std::endl;
+      std::cerr << name_ + " just stopped, is it endless?" << std::endl;
       dp.emit();
       return;
     }