diff --git a/engine/schema/src/com/cloud/upgrade/dao/Upgrade410to420.java b/engine/schema/src/com/cloud/upgrade/dao/Upgrade410to420.java
index 9376c4572f2..d578e0e7ef8 100755
--- a/engine/schema/src/com/cloud/upgrade/dao/Upgrade410to420.java
+++ b/engine/schema/src/com/cloud/upgrade/dao/Upgrade410to420.java
@@ -689,7 +689,7 @@ public class Upgrade410to420 implements DbUpgrade {
                     rsmem_global.close();
                 }
                 if (rscpu_global != null) {
-                    rsmem_global.close();
+                    rscpu_global.close();
                 }
                 if (pstmt != null) {
                     pstmt.close();