diff --git a/core/src/main/java/com/linecorp/armeria/common/loadbalancer/LoadBalancer.java b/core/src/main/java/com/linecorp/armeria/common/loadbalancer/LoadBalancer.java
index 091f907d5a5..97cf708f47f 100644
--- a/core/src/main/java/com/linecorp/armeria/common/loadbalancer/LoadBalancer.java
+++ b/core/src/main/java/com/linecorp/armeria/common/loadbalancer/LoadBalancer.java
@@ -150,8 +150,8 @@ static <T extends Weighted> SimpleLoadBalancer<T> ofWeightedRandom(T... candidat
      *
      * @param weightFunction the weight function which returns the weight of the candidate.
      */
-    static <T, C> UpdatableLoadBalancer<T> ofRampingUp(Iterable<? extends T> candidates,
-                                                       ToIntFunction<? super T> weightFunction) {
+    static <T> UpdatableLoadBalancer<T> ofRampingUp(Iterable<? extends T> candidates,
+                                                    ToIntFunction<? super T> weightFunction) {
         requireNonNull(candidates, "candidates");
         requireNonNull(weightFunction, "weightFunction");
         return LoadBalancer.<T>builderForRampingUp(candidates, weightFunction)