diff --git a/src/org/redkale/source/EntityCache.java b/src/org/redkale/source/EntityCache.java
index 337612ac7..4993b7540 100644
--- a/src/org/redkale/source/EntityCache.java
+++ b/src/org/redkale/source/EntityCache.java
@@ -637,6 +637,7 @@ public final class EntityCache<T> {
         Serializable newval = null;
         switch (express) {
             case INC:
+            case DEC:
             case MUL:
             case DIV:
             case MOD: