diff --git a/AppKit/CPStringDrawing.j b/AppKit/CPStringDrawing.j
index 5aab8aa01..a741543ce 100644
--- a/AppKit/CPStringDrawing.j
+++ b/AppKit/CPStringDrawing.j
@@ -101,7 +101,7 @@ CPStringSizeCachingEnabled = YES;
         if (fontHeight === undefined)
             fontHeight = CPStringSizeWithFontHeightCache[cssString] = [aFont defaultLineHeightForFont];
 
-        size = CGSizeMake(CPStringSizeMeasuringContext.measureText(self).width, fontHeight);
+        size = CGSizeMake(CPStringSizeMeasuringContext.measureText(self).width + 1, fontHeight);
     }
 
     sizeCacheForFont[cacheKey] = size;