diff --git a/x/dao/keeper/msg_server_reissue_rddl_result.go b/x/dao/keeper/msg_server_reissue_rddl_result.go
index def8e2b..32c5b1b 100644
--- a/x/dao/keeper/msg_server_reissue_rddl_result.go
+++ b/x/dao/keeper/msg_server_reissue_rddl_result.go
@@ -11,19 +11,19 @@ import (
 
 func (k msgServer) ReissueRDDLResult(goCtx context.Context, msg *types.MsgReissueRDDLResult) (*types.MsgReissueRDDLResultResponse, error) {
 	ctx := sdk.UnwrapSDKContext(goCtx)
-
+	errmsg := " for provided block height %s"
 	reissuance, found := k.LookupReissuance(ctx, msg.GetBlockHeight())
 	if !found {
-		return nil, errorsmod.Wrapf(types.ErrReissuanceNotFound, " for provided block height %s", strconv.FormatInt(msg.GetBlockHeight(), 10))
+		return nil, errorsmod.Wrapf(types.ErrReissuanceNotFound, errmsg, strconv.FormatInt(msg.GetBlockHeight(), 10))
 	}
 	if reissuance.GetBlockHeight() != msg.GetBlockHeight() {
-		return nil, errorsmod.Wrapf(types.ErrWrongBlockHeight, " for provided block height %s", strconv.FormatInt(msg.GetBlockHeight(), 10))
+		return nil, errorsmod.Wrapf(types.ErrWrongBlockHeight, errmsg, strconv.FormatInt(msg.GetBlockHeight(), 10))
 	}
 	if reissuance.GetProposer() != msg.GetProposer() {
-		return nil, errorsmod.Wrapf(types.ErrInvalidProposer, " for provided block height %s", strconv.FormatInt(msg.GetBlockHeight(), 10))
+		return nil, errorsmod.Wrapf(types.ErrInvalidProposer, errmsg, strconv.FormatInt(msg.GetBlockHeight(), 10))
 	}
 	if reissuance.GetTxID() != "" {
-		return nil, errorsmod.Wrapf(types.ErrTXAlreadySet, " for provided block height %s", strconv.FormatInt(msg.GetBlockHeight(), 10))
+		return nil, errorsmod.Wrapf(types.ErrTXAlreadySet, errmsg, strconv.FormatInt(msg.GetBlockHeight(), 10))
 	}
 	reissuance.TxID = msg.GetTxID()
 
diff --git a/x/dao/keeper/msg_server_test.go b/x/dao/keeper/msg_server_test.go
index e591d34..be230d5 100644
--- a/x/dao/keeper/msg_server_test.go
+++ b/x/dao/keeper/msg_server_test.go
@@ -31,6 +31,7 @@ func TestMsgServerReportPoPResult(t *testing.T) {
 	initiator := sample.Secp256k1AccAddress()
 	challenger := sample.Secp256k1AccAddress()
 	challengee := sample.Secp256k1AccAddress()
+	errInvalidPopData := "Invalid pop data"
 
 	testCases := []struct {
 		name   string
@@ -81,7 +82,7 @@ func TestMsgServerReportPoPResult(t *testing.T) {
 			"Initiator is not set: invalid challenge",
 		},
 		{
-			"Invalid pop data",
+			errInvalidPopData,
 			types.MsgReportPopResult{
 				Creator: challenger.String(),
 				Challenge: &types.Challenge{
@@ -96,7 +97,7 @@ func TestMsgServerReportPoPResult(t *testing.T) {
 			"PoP report data does not match challenge: invalid challenge",
 		},
 		{
-			"Invalid pop data",
+			errInvalidPopData,
 			types.MsgReportPopResult{
 				Creator: challenger.String(),
 				Challenge: &types.Challenge{
@@ -111,7 +112,7 @@ func TestMsgServerReportPoPResult(t *testing.T) {
 			"PoP reporter is not the challenger: invalid PoP reporter",
 		},
 		{
-			"Invalid pop data",
+			errInvalidPopData,
 			types.MsgReportPopResult{
 				Creator: challenger.String(),
 				Challenge: &types.Challenge{