diff --git a/platform/util/src/com/intellij/util/ui/UIUtil.java b/platform/util/src/com/intellij/util/ui/UIUtil.java
index ee56a623e483..59272d4d93c0 100644
--- a/platform/util/src/com/intellij/util/ui/UIUtil.java
+++ b/platform/util/src/com/intellij/util/ui/UIUtil.java
@@ -2911,6 +2911,8 @@ public class UIUtil {
 
   private static Map<String, String> ourRealFontFamilies = null;
 
+  //Experimental, seems to be reliable under MacOS X only
+
   public static String getRealFontFamily(String genericFontFamily) {
     if (ourRealFontFamilies != null && ourRealFontFamilies.get(genericFontFamily) != null) {
       return ourRealFontFamilies.get(genericFontFamily);