diff --git a/reference_test.go b/reference_test.go
index 3f5d5a6..da4f750 100644
--- a/reference_test.go
+++ b/reference_test.go
@@ -275,9 +275,14 @@ func TestReferenceOverlapIsRejected(t *testing.T) {
 			t.Errorf("%s: New = %v, want the overlap rejected", name, err)
 		}
 	}
-	_, err := New(WithoutShippedData(), WithDataPath(writeData(t, map[string]string{"cat": cat, "row": `{"format":"{a} {b}","a":"{/cat}","b":"{/cat.p.first}"}`})))
-	if err == nil || !strings.HasSuffix(err.Error(), "or give {b} a drawGroup") {
-		t.Errorf("New = %v, want the drawGroup named on the path's field", err)
+	for row, suffix := range map[string]string{
+		`{"format":"{a} {b}","a":"{/cat}","b":"{/cat.p.first}"}`: "or give {b} a drawGroup",
+		`{"format":"{a}","a":"{/cat} {/cat.p.first}"}`:           "name the fields you want instead",
+	} {
+		_, err := New(WithoutShippedData(), WithDataPath(writeData(t, map[string]string{"cat": cat, "row": row})))
+		if err == nil || !strings.HasSuffix(err.Error(), suffix) {
+			t.Errorf("New(%s) = %v, want it to end %q", row, err, suffix)
+		}
 	}
 	// A sibling path and a reference into the level it holds are the same overlap,
 	// and the reference reaches it from a category row renders.
diff --git a/table_test.go b/table_test.go
index d7b8be5..38a0e86 100644
--- a/table_test.go
+++ b/table_test.go
@@ -1120,8 +1120,8 @@ func TestCellReadsMeetWhereTheRenderPairsTheRows(t *testing.T) {
 		"region.json":       `{"format":"{name}={note}","rows":"region.tsv","key":"code","name":"name","weight":"population"}`,
 		"x.json":            `"{/region}|{/municipality}"`,
 	})
-	if _, err := New(WithoutShippedData(), WithDataPath(writeFiles(t, whole)), WithSeed(1)); err == nil || !strings.Contains(err.Error(), "renders its own draw of what") {
-		t.Fatalf("New = %v, want the two drawn rows held to one draw of addr", err)
+	if _, err := New(WithoutShippedData(), WithDataPath(writeFiles(t, whole)), WithSeed(1)); err == nil || !strings.HasSuffix(err.Error(), "or move {/municipality} into a field with a drawGroup") {
+		t.Fatalf("New = %v, want the two drawn rows held to one draw of addr, and the drawGroup named on a field around the read", err)
 	}
 	nested := with(whole, map[string]string{
 		"municipality.tsv": "code\tname\tregion\tpopulation\tnote\n0180\tStockholm\t01\t980000\t-\n0184\tSolna\t01\t85000\t-\n1280\tMalmö\t12\t360000\t{/shop}\n1281\tLund\t12\t130000\t{/addr.city}\n1480\tGöteborg\t14\t590000\t-\n",