diff --git a/server/src/main/java/org/opensearch/cluster/routing/WeightedRoutingService.java b/server/src/main/java/org/opensearch/cluster/routing/WeightedRoutingService.java
index ff5f3be769870..df7b1ec88024b 100644
--- a/server/src/main/java/org/opensearch/cluster/routing/WeightedRoutingService.java
+++ b/server/src/main/java/org/opensearch/cluster/routing/WeightedRoutingService.java
@@ -189,7 +189,7 @@ public void ensureDecommissionedAttributeHasZeroWeight(ClusterState state, Clust
         }
         if (Objects.equals(weightedRouting.weights().get(decommissionAttribute.attributeValue()), 0.0) == false) {
             throw new IllegalStateException(
-                "weight for [" + decommissionAttribute.attributeValue() + "] must be set to [0.0] as it is under decommission action"
+                "weight for [" + decommissionAttribute.attributeValue() + "] must be set to [0] as it is under decommission action"
             );
         }
     }