diff --git a/src/main/java/com/alibaba/druid/sql/ast/statement/SQLShowGrantsStatement.java b/src/main/java/com/alibaba/druid/sql/ast/statement/SQLShowGrantsStatement.java
index fabb110f87..0ffeae9469 100644
--- a/src/main/java/com/alibaba/druid/sql/ast/statement/SQLShowGrantsStatement.java
+++ b/src/main/java/com/alibaba/druid/sql/ast/statement/SQLShowGrantsStatement.java
@@ -47,7 +47,7 @@ public class SQLShowGrantsStatement extends SQLStatementImpl implements SQLShowS
     }
 
     public void setOn(SQLExpr x) {
-        if (x == null) {
+        if (x != null) {
             x.setParent(this);
         }
         this.on = x;