diff --git a/src/main/java/com/nhn/pinpoint/common/ServiceType.java b/src/main/java/com/nhn/pinpoint/common/ServiceType.java
index 7a8f2f45e..61aaa903b 100644
--- a/src/main/java/com/nhn/pinpoint/common/ServiceType.java
+++ b/src/main/java/com/nhn/pinpoint/common/ServiceType.java
@@ -186,7 +186,7 @@ public enum ServiceType {
         return serviceType;
     }
 
-    private static final IntHashMap<ServiceType> CODE_LOOKUP_TABLE = new IntHashMap<ServiceType>(128);
+    private static final IntHashMap<ServiceType> CODE_LOOKUP_TABLE = new IntHashMap<ServiceType>(256);
     private static final Map<String, List<ServiceType>> STATISTICS_LOOKUP_TABLE = new HashMap<String, List<ServiceType>>(64);
 
     static {