diff --git a/Tools/nib2cib/NSTextField.j b/Tools/nib2cib/NSTextField.j
index 8b1b1eeda..8ded6c08e 100644
--- a/Tools/nib2cib/NSTextField.j
+++ b/Tools/nib2cib/NSTextField.j
@@ -36,7 +36,7 @@
     {
         var cell = [aCoder decodeObjectForKey:@"NSCell"];
         
-        if ([[cell font] isEqual:[CPFont boldSystemFontOfSize:12.0]])
+        if ([cell isEditable] && [[cell font] isEqual:[CPFont boldSystemFontOfSize:12.0]])
             [self setFont:[CPFont systemFontOfSize:12.0]];
 
         [self sendActionOn:CPKeyUpMask|CPKeyDownMask];