diff --git a/server/src/main/java/com/cloud/capacity/CapacityManagerImpl.java b/server/src/main/java/com/cloud/capacity/CapacityManagerImpl.java
index ce86add1a08..c95c8acb4e8 100644
--- a/server/src/main/java/com/cloud/capacity/CapacityManagerImpl.java
+++ b/server/src/main/java/com/cloud/capacity/CapacityManagerImpl.java
@@ -1181,6 +1181,7 @@ public class CapacityManagerImpl extends ManagerBase implements CapacityManager,
     public void processPrepareMaintenaceEventAfter(Long hostId) {
         _capacityDao.removeBy(Capacity.CAPACITY_TYPE_MEMORY, null, null, null, hostId);
         _capacityDao.removeBy(Capacity.CAPACITY_TYPE_CPU, null, null, null, hostId);
+        _capacityDao.removeBy(Capacity.CAPACITY_TYPE_CPU_CORE, null, null, null, hostId);
     }
 
     @Override
diff --git a/server/src/main/java/com/cloud/resource/ResourceManagerImpl.java b/server/src/main/java/com/cloud/resource/ResourceManagerImpl.java
index 267ad2bad23..f2a3caa6000 100755
--- a/server/src/main/java/com/cloud/resource/ResourceManagerImpl.java
+++ b/server/src/main/java/com/cloud/resource/ResourceManagerImpl.java
@@ -933,7 +933,7 @@ public class ResourceManagerImpl extends ManagerBase implements ResourceManager,
                 }
 
                 // delete the op_host_capacity entry
-                final Object[] capacityTypes = {Capacity.CAPACITY_TYPE_CPU, Capacity.CAPACITY_TYPE_MEMORY};
+                final Object[] capacityTypes = {Capacity.CAPACITY_TYPE_CPU, Capacity.CAPACITY_TYPE_MEMORY, Capacity.CAPACITY_TYPE_CPU_CORE};
                 final SearchCriteria<CapacityVO> hostCapacitySC = _capacityDao.createSearchCriteria();
                 hostCapacitySC.addAnd("hostOrPoolId", SearchCriteria.Op.EQ, hostId);
                 hostCapacitySC.addAnd("capacityType", SearchCriteria.Op.IN, capacityTypes);