diff --git a/pkg/cmd/repo/sync/git.go b/pkg/cmd/repo/sync/git.go
index 54da42719..fb2a7fd27 100644
--- a/pkg/cmd/repo/sync/git.go
+++ b/pkg/cmd/repo/sync/git.go
@@ -22,7 +22,7 @@ type gitClient interface {
 type gitExecuter struct{}
 
 func (g *gitExecuter) BranchRemote(branch string) (string, error) {
-	args := append([]string{"rev-parse", "--symbolic-full-name", "--abbrev-ref", fmt.Sprintf("%s@{u}", branch)})
+	args := []string{"rev-parse", "--symbolic-full-name", "--abbrev-ref", fmt.Sprintf("%s@{u}", branch)}
 	cmd, err := git.GitCommand(args...)
 	if err != nil {
 		return "", err
diff --git a/pkg/cmd/repo/sync/sync.go b/pkg/cmd/repo/sync/sync.go
index 9178e2a69..b420886fc 100644
--- a/pkg/cmd/repo/sync/sync.go
+++ b/pkg/cmd/repo/sync/sync.go
@@ -249,6 +249,9 @@ func executeLocalRepoSync(srcRepo ghrepo.Interface, remote string, opts *SyncOpt
 	hasLocalBranch := git.HasLocalBranch([]string{branch})
 	if hasLocalBranch {
 		branchRemote, err := git.BranchRemote(branch)
+		if err != nil {
+			return err
+		}
 		if branchRemote != remote {
 			return mismatchRemotesError
 		}