diff --git a/x/slashing/signing_info.go b/x/slashing/signing_info.go
index 7283c6ca01..291351742f 100644
--- a/x/slashing/signing_info.go
+++ b/x/slashing/signing_info.go
@@ -24,6 +24,7 @@ func (k Keeper) getValidatorSigningInfo(ctx sdk.Context, address sdk.ConsAddress
 func (k Keeper) iterateValidatorSigningInfos(ctx sdk.Context, handler func(address sdk.ConsAddress, info ValidatorSigningInfo) (stop bool)) {
 	store := ctx.KVStore(k.storeKey)
 	iter := sdk.KVStorePrefixIterator(store, ValidatorSigningInfoKey)
+	defer iter.Close()
 	for ; iter.Valid(); iter.Next() {
 		address := GetValidatorSigningInfoAddress(iter.Key())
 		var info ValidatorSigningInfo
@@ -32,7 +33,6 @@ func (k Keeper) iterateValidatorSigningInfos(ctx sdk.Context, handler func(addre
 			break
 		}
 	}
-	iter.Close()
 }
 
 // Stored by *validator* address (not operator address)
@@ -84,10 +84,10 @@ func (k Keeper) setValidatorMissedBlockBitArray(ctx sdk.Context, address sdk.Con
 func (k Keeper) clearValidatorMissedBlockBitArray(ctx sdk.Context, address sdk.ConsAddress) {
 	store := ctx.KVStore(k.storeKey)
 	iter := sdk.KVStorePrefixIterator(store, GetValidatorMissedBlockBitArrayPrefixKey(address))
+	defer iter.Close()
 	for ; iter.Valid(); iter.Next() {
 		store.Delete(iter.Key())
 	}
-	iter.Close()
 }
 
 // Construct a new `ValidatorSigningInfo` struct