diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/main/java/org/apache/hadoop/yarn/client/cli/RMAdminCLI.java b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/main/java/org/apache/hadoop/yarn/client/cli/RMAdminCLI.java
index 2508c3e759..48260139fa 100644
--- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/main/java/org/apache/hadoop/yarn/client/cli/RMAdminCLI.java
+++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/main/java/org/apache/hadoop/yarn/client/cli/RMAdminCLI.java
@@ -685,7 +685,7 @@ private Map<NodeId, Set<String>> buildNodeLabelsMapFromStr(String args) {
       }
       
       int nLabels = map.get(nodeId).size();
-      Preconditions.checkArgument(nLabels <= 1, "%d labels specified on host=%s"
+      Preconditions.checkArgument(nLabels <= 1, "%s labels specified on host=%s"
           + ", please note that we do not support specifying multiple"
           + " labels on a single host for now.", nLabels, nodeIdStr);
     }