diff --git a/Examples/ObjectiveC/CustomCalloutView.m b/Examples/ObjectiveC/CustomCalloutView.m
index 05c4e681..24d1aae2 100644
--- a/Examples/ObjectiveC/CustomCalloutView.m
+++ b/Examples/ObjectiveC/CustomCalloutView.m
@@ -130,7 +130,7 @@ - (void)setCenter:(CGPoint)center {
 - (BOOL)isCalloutTappable
 {
     if ([self.delegate respondsToSelector:@selector(calloutViewShouldHighlight:)]) {
-        return [self.delegate performSelector:@selector(calloutViewShouldHighlight:) withObject:self];
+        return (BOOL)[self.delegate performSelector:@selector(calloutViewShouldHighlight:) withObject:self];
     }
 
     return NO;