diff --git a/src/go/types/conversions.go b/src/go/types/conversions.go
index 69463f0ca6..d93ff465bb 100644
--- a/src/go/types/conversions.go
+++ b/src/go/types/conversions.go
@@ -142,7 +142,7 @@ func isUintptr(typ Type) bool {
 }
 
 func isUnsafePointer(typ Type) bool {
-	// TODO(gri): Is this asBasic() instead of typ.(*Basic) correct?
+	// TODO(gri): Is this asBasic(typ) instead of typ.(*Basic) correct?
 	//            (The former calls under(), while the latter doesn't.)
 	//            The spec does not say so, but gc claims it is. See also
 	//            issue 6326.
diff --git a/src/go/types/issues_test.go b/src/go/types/issues_test.go
index 9ed2934c74..a773a362c7 100644
--- a/src/go/types/issues_test.go
+++ b/src/go/types/issues_test.go
@@ -385,9 +385,9 @@ func TestIssue28005(t *testing.T) {
 			}
 		}
 		if obj == nil {
-			t.Fatal("interface not found")
+			t.Fatal("object X not found")
 		}
-		iface := obj.Type().Underlying().(*Interface) // I must be an interface
+		iface := obj.Type().Underlying().(*Interface) // object X must be an interface
 
 		// Each iface method m is embedded; and m's receiver base type name
 		// must match the method's name per the choice in the source file.