diff --git a/contracts/ronin/validator/CandidateManager.sol b/contracts/ronin/validator/CandidateManager.sol
index 364dfe82b..66afe0115 100644
--- a/contracts/ronin/validator/CandidateManager.sol
+++ b/contracts/ronin/validator/CandidateManager.sol
@@ -235,10 +235,11 @@ abstract contract CandidateManager is ICandidateManager, PercentageConsumer, Glo
       }
     }
 
+    assembly {
+      mstore(_unsatisfiedCandidates, _unsatisfiedCount)
+    }
+
     if (_unsatisfiedCount > 0) {
-      assembly {
-        mstore(_unsatisfiedCandidates, _unsatisfiedCount)
-      }
       emit CandidatesRevoked(_unsatisfiedCandidates);
       _staking.execDeprecatePools(_unsatisfiedCandidates, _nextPeriod);
     }