diff --git a/Classes/BITAttributedLabel.m b/Classes/BITAttributedLabel.m
index 87d8ba625d..a7b0be3920 100755
--- a/Classes/BITAttributedLabel.m
+++ b/Classes/BITAttributedLabel.m
@@ -666,6 +666,7 @@ static inline NSAttributedString * NSAttributedStringBySettingColorFromContext(N
                 
                 CTFontRef font = CTFontCreateWithName((__bridge CFStringRef)self.font.fontName, self.font.pointSize, NULL);
                 CGContextSetLineWidth(c, CTFontGetUnderlineThickness(font));
+                CFRelease(font);
                 CGFloat y = roundf(runBounds.origin.y + runBounds.size.height / 2.0f);
                 CGContextMoveToPoint(c, runBounds.origin.x, y);
                 CGContextAddLineToPoint(c, runBounds.origin.x + runBounds.size.width, y);