diff --git a/internal/lsp/source/rename.go b/internal/lsp/source/rename.go
index 70489620fd..7164f81d71 100644
--- a/internal/lsp/source/rename.go
+++ b/internal/lsp/source/rename.go
@@ -78,6 +78,9 @@ func (i *IdentifierInfo) Rename(ctx context.Context, newName string) (map[span.U
 	// Check that the renaming of the identifier is ok.
 	for _, ref := range refs {
 		r.check(ref.obj)
+		if r.hadConflicts { // one error is enough.
+			break
+		}
 	}
 	if r.hadConflicts {
 		return nil, errors.Errorf(r.errors)
diff --git a/internal/lsp/testdata/rename/bad/bad_test.go.in b/internal/lsp/testdata/rename/bad/bad_test.go.in
new file mode 100644
index 0000000000..e695db14be
--- /dev/null
+++ b/internal/lsp/testdata/rename/bad/bad_test.go.in
@@ -0,0 +1 @@
+package bad
\ No newline at end of file