diff --git a/TOPasscodeViewController/TOPasscodeViewController.m b/TOPasscodeViewController/TOPasscodeViewController.m
index 764f944..ed4b2aa 100755
--- a/TOPasscodeViewController/TOPasscodeViewController.m
+++ b/TOPasscodeViewController/TOPasscodeViewController.m
@@ -456,6 +456,7 @@ - (void)keypadButtonTapped
     [UIView performWithoutAnimation:^{
         if (title != nil) {
             [self.cancelButton setTitle:title forState:UIControlStateNormal];
+            [self.cancelButton sizeToFit];
             [self.cancelButton layoutIfNeeded];
         }
         self.cancelButton.hidden = (title == nil);