diff --git a/ext/tk/sample/tkextlib/treectrl/explorer.rb b/ext/tk/sample/tkextlib/treectrl/explorer.rb
index b384fb7c8e..242777cbce 100644
--- a/ext/tk/sample/tkextlib/treectrl/explorer.rb
+++ b/ext/tk/sample/tkextlib/treectrl/explorer.rb
@@ -144,11 +144,7 @@ def demoExplorerDetails(t)
     when '.txt'
       img = 'small-txt'
     else
-      if FileTest.executable?(file)
-        img = 'small-exe'
-      else
-        img = 'small-file'
-      end
+      img = 'small-file'
     end
 
     type = ext.upcase