diff --git a/Plugins/Flow.Launcher.Plugin.Explorer/Search/SearchManager.cs b/Plugins/Flow.Launcher.Plugin.Explorer/Search/SearchManager.cs
index 41a98b929..8fd167476 100644
--- a/Plugins/Flow.Launcher.Plugin.Explorer/Search/SearchManager.cs
+++ b/Plugins/Flow.Launcher.Plugin.Explorer/Search/SearchManager.cs
@@ -258,7 +258,7 @@ namespace Flow.Launcher.Plugin.Explorer.Search
             string[] excludedFileTypes = Settings.ExcludedFileTypes.Split(new[] { ',' }, StringSplitOptions.RemoveEmptyEntries);
             string fileExtension = Path.GetExtension(result.FullPath).TrimStart('.');
 
-            return excludedFileTypes.Contains(fileExtension);
+            return excludedFileTypes.Contains(fileExtension, StringComparer.OrdinalIgnoreCase);
         }
     }
 }