diff --git a/Assets/Fungus/Scripts/Editor/CharacterEditor.cs b/Assets/Fungus/Scripts/Editor/CharacterEditor.cs
index 60c4bbaf..057692be 100644
--- a/Assets/Fungus/Scripts/Editor/CharacterEditor.cs
+++ b/Assets/Fungus/Scripts/Editor/CharacterEditor.cs
@@ -33,6 +33,7 @@ namespace Fungus.EditorUtils
             serializedObject.Update();
 
             Character t = target as Character;
+            EditorGUI.BeginChangeCheck();
 
             EditorGUILayout.PropertyField(nameTextProp, new GUIContent("Name Text", "Name of the character display in the dialog"));
             EditorGUILayout.PropertyField(nameColorProp, new GUIContent("Name Color", "Color of name text display in the dialog"));
@@ -75,7 +76,8 @@ namespace Fungus.EditorUtils
 
             EditorGUILayout.Separator();
 
-            EditorUtility.SetDirty(t);
+            if(EditorGUI.EndChangeCheck())
+                EditorUtility.SetDirty(t);
 
             serializedObject.ApplyModifiedProperties();
         }