diff --git a/js/battle.js b/js/battle.js
index 78d22f95f..49fbaf8b1 100644
--- a/js/battle.js
+++ b/js/battle.js
@@ -132,6 +132,10 @@ function Pokemon(species) {
 		}
 		// pixel damage
 		var oldrange = selfP.getPixelRange(damage[3], damage[4]);
+		if (damage[0] === 0) {
+			// no change in displayed pixel width
+			return [0, oldrange[1] - oldrange[0]];
+		}
 		var newrange = selfP.getPixelRange(damage[3] + damage[0], selfP.hpcolor);
 		if (oldrange[0] < newrange[0]) { // swap order
 			var r = oldrange;