diff --git a/src/main/java/org/gitlab4j/api/AbstractApi.java b/src/main/java/org/gitlab4j/api/AbstractApi.java
index 35d1b66fca88b2219af682edf2b5e7ae27295bea..4b4909173851948c5169f356489dae351e85ee90 100644
--- a/src/main/java/org/gitlab4j/api/AbstractApi.java
+++ b/src/main/java/org/gitlab4j/api/AbstractApi.java
@@ -155,7 +155,7 @@ public abstract class AbstractApi implements Constants {
                 return (id);
             }
 
-            String name = ((User) obj).getName();
+            String name = ((Label) obj).getName();
             if (name != null && name.trim().length() > 0) {
                 return (urlEncode(name.trim()));
             }