diff --git a/ATMHudView.m b/ATMHudView.m
index dc8d679..f99742f 100644
--- a/ATMHudView.m
+++ b/ATMHudView.m
@@ -219,7 +219,9 @@ - (void)calculate {
 				imageRect = CGRectZero;
 				imageRect.origin.x = (targetBounds.size.width-image.size.width)*0.5;
 				imageRect.origin.y = marginY;
-				imageRect.size = image.size;
+        if (image.size.width > 0.0f && image.size.height > 0.0f) {
+          imageRect.size = image.size;
+        }
 				
 				progressRect = CGRectMake((targetBounds.size.width-progressRect.size.width)*0.5, marginY, progressRect.size.width, progressRect.size.height);