diff --git a/spine-js/spine.js b/spine-js/spine.js
index ecd3194d3..bee97ed2d 100644
--- a/spine-js/spine.js
+++ b/spine-js/spine.js
@@ -1774,7 +1774,7 @@ spine.SkeletonJson.prototype = {
 			}
 
 			slotData.attachmentName = slotMap["attachment"];
-			slotData.blendMode = spine.AttachmentType[slotMap["blend"] || "normal"];
+			slotData.blendMode = spine.BlendMode[slotMap["blend"] || "normal"];
 
 			skeletonData.slots.push(slotData);
 		}