diff --git a/addons/project/kateprojectworker.cpp b/addons/project/kateprojectworker.cpp
--- a/addons/project/kateprojectworker.cpp
+++ b/addons/project/kateprojectworker.cpp
@@ -168,7 +168,7 @@
         return;
     }
 
-    files.sort();
+    files.sort(Qt::CaseInsensitive);
 
     /**
      * construct paths first in tree and items in a map