diff --git a/internal/topdata/native.go b/internal/topdata/native.go
index 6d8ce23..31a508b 100644
--- a/internal/topdata/native.go
+++ b/internal/topdata/native.go
@@ -4154,7 +4154,7 @@ func racialUsableFeatRules(collected []nativeCollectedDataset) []project.TopData
 	seen := map[string]struct{}{}
 	rules := []project.TopDataClassFeatGlobalRule{}
 	for _, ds := range collected {
-		if !strings.HasPrefix(ds.Dataset.OutputName, "race_feat_") {
+		if !strings.HasPrefix(ds.Dataset.OutputName, "race_feat_") || !strings.HasSuffix(ds.Dataset.OutputName, ".2da") {
 			continue
 		}
 		for _, row := range ds.Rows {
diff --git a/internal/topdata/racial_feat_rules_test.go b/internal/topdata/racial_feat_rules_test.go
index 0ece83a..c86afc5 100644
--- a/internal/topdata/racial_feat_rules_test.go
+++ b/internal/topdata/racial_feat_rules_test.go
@@ -47,12 +47,8 @@ func TestRacialUsableFeatRules(t *testing.T) {
 		{Feat: "feat:tiefling/darkness", List: "3", GrantedOnLevel: "99", OnMenu: "1"},
 	}
 
-	if len(got) != len(want) {
-		t.Fatalf("rule count: got %d, want %d (%+v)", len(got), len(want), got)
-	}
-	for i := range want {
-		if !reflect.DeepEqual(got[i], want[i]) { // slice is sorted by Feat, so order is deterministic
-			t.Fatalf("rule %d: got %+v, want %+v", i, got[i], want[i])
-		}
+	// Slice is sorted by Feat, so order is deterministic.
+	if !reflect.DeepEqual(got, want) {
+		t.Fatalf("rules: got %+v, want %+v", got, want)
 	}
 }