diff --git a/service/submitqueue/gateway/server/mapper/land.go b/service/submitqueue/gateway/server/mapper/land.go
index 632649569..8c77d56fb 100644
--- a/service/submitqueue/gateway/server/mapper/land.go
+++ b/service/submitqueue/gateway/server/mapper/land.go
@@ -59,6 +59,8 @@ func resolveMergeStrategy(s mergestrategypb.Strategy) (mergestrategy.MergeStrate
 		return mergestrategy.MergeStrategySquashRebase, nil
 	case mergestrategypb.Strategy_MERGE:
 		return mergestrategy.MergeStrategyMerge, nil
+	case mergestrategypb.Strategy_PROMOTE:
+		return mergestrategy.MergeStrategyPromote, nil
 	default:
 		return mergestrategy.MergeStrategyUnknown, fmt.Errorf("%w: %v", errUnknownStrategy, s)
 	}
diff --git a/service/submitqueue/gateway/server/mapper/land_test.go b/service/submitqueue/gateway/server/mapper/land_test.go
index 72cfdd01c..348282856 100644
--- a/service/submitqueue/gateway/server/mapper/land_test.go
+++ b/service/submitqueue/gateway/server/mapper/land_test.go
@@ -94,6 +94,7 @@ func TestResolveMergeStrategy(t *testing.T) {
 		{name: "rebase", in: mergestrategypb.Strategy_REBASE, want: mergestrategy.MergeStrategyRebase},
 		{name: "squash_rebase", in: mergestrategypb.Strategy_SQUASH_REBASE, want: mergestrategy.MergeStrategySquashRebase},
 		{name: "merge", in: mergestrategypb.Strategy_MERGE, want: mergestrategy.MergeStrategyMerge},
+		{name: "promote", in: mergestrategypb.Strategy_PROMOTE, want: mergestrategy.MergeStrategyPromote},
 		{name: "unknown", in: mergestrategypb.Strategy(9999), errMsg: "unknown land strategy in proto message"},
 	}