diff --git a/state/execution.go b/state/execution.go
index ded3585e8..59d18b48b 100644
--- a/state/execution.go
+++ b/state/execution.go
@@ -189,9 +189,9 @@ func execBlockOnProxyApp(logger log.Logger, proxyAppConn proxy.AppConnConsensus,
 	// determine which validators did not sign last block
 	absentVals := make([][]byte, 0)
 	for valI, vote := range block.LastCommit.Precommits {
-		addr, _ := vs.GetByIndex(valI)
 		if vote == nil {
-			absentVals = append(absentVals, addr)
+			_, val := vs.GetByIndex(valI)
+			absentVals = append(absentVals, val.PubKey.Bytes())
 		}
 	}
 
diff --git a/state/execution_test.go b/state/execution_test.go
index e89a50b0c..170bf2665 100644
--- a/state/execution_test.go
+++ b/state/execution_test.go
@@ -18,7 +18,7 @@ import (
 )
 
 var (
-	privKey      = crypto.GenPrivKeyEd25519FromSecret([]byte("execution_test"))
+	privKey      = crypto.GenPrivKeyEd25519FromSecret([]byte("execution_test_1"))
 	privKey2     = crypto.GenPrivKeyEd25519FromSecret([]byte("execution_test_2"))
 	chainID      = "execution_chain"
 	testPartSize = 65536
@@ -143,7 +143,8 @@ func state() State {
 	s, _ := MakeGenesisState(&types.GenesisDoc{
 		ChainID: chainID,
 		Validators: []types.GenesisValidator{
-			{privKey.PubKey(), 10000, "test"},
+			{privKey.PubKey(), 10000, "test1"},
+			{privKey2.PubKey(), 10000, "test2"},
 		},
 		AppHash: nil,
 	})