diff --git a/Libraries/UniversalEditor.UserInterface/Editors/FileSystem/FileSystemEditor.cs b/Libraries/UniversalEditor.UserInterface/Editors/FileSystem/FileSystemEditor.cs
index ab2b0359..b6ed707a 100644
--- a/Libraries/UniversalEditor.UserInterface/Editors/FileSystem/FileSystemEditor.cs
+++ b/Libraries/UniversalEditor.UserInterface/Editors/FileSystem/FileSystemEditor.cs
@@ -79,7 +79,7 @@ namespace UniversalEditor.Editors.FileSystem
 			string fileTitle = filename; // filePath[filePath.Length - 1];
 
 			bool containsInvalidFileNames = invalidFileNames.Length > 0 && fileTitle.EqualsAny(invalidFileNames);
-			bool containsInvalidChars = String.IsNullOrEmpty(invalidPathChars) || fileTitle.ContainsAny(invalidPathChars.ToCharArray());
+			bool containsInvalidChars = !String.IsNullOrEmpty(invalidPathChars) && fileTitle.ContainsAny(invalidPathChars.ToCharArray());
 			return !(containsInvalidFileNames || containsInvalidChars);
 		}