diff --git a/catcli/decomp.py b/catcli/decomp.py
index 59ad469..e7285fd 100644
--- a/catcli/decomp.py
+++ b/catcli/decomp.py
@@ -33,7 +33,7 @@ class Decomp:
 
     def get_names(self, path):
         '''get tree of compressed archive'''
-        ext = os.path.splitext(path)[1][1:]
+        ext = os.path.splitext(path)[1][1:].lower()
         if ext in list(self.ext.keys()):
             return self.ext[ext](path)
         return None
diff --git a/catcli/noder.py b/catcli/noder.py
index 4c3b72d..3b493ea 100644
--- a/catcli/noder.py
+++ b/catcli/noder.py
@@ -205,8 +205,11 @@ class Noder:
         if self.arc:
             ext = os.path.splitext(path)[1][1:]
             if ext.lower() in self.decomp.get_formats():
+                self._debug('{} is an archive'.format(path))
                 names = self.decomp.get_names(path)
                 self.list_to_tree(n, names)
+            else:
+                self._debug('{} is NOT an archive'.format(path))
         return n
 
     def dir_node(self, name, path, parent, storagepath):