diff --git a/conn/command.go b/conn/command.go
index 4b6866b..37c3674 100644
--- a/conn/command.go
+++ b/conn/command.go
@@ -57,10 +57,9 @@ func (conn *Connection) GetSshConfig(ctx context.Context, name string) (string,
 func (conn *Connection) GetRepoNames(ctx context.Context, hostname string, repoName string) (string, error) {
 	args := []string{
 		"repo", "view", hostname + "/" + repoName,
-		"--json", "owner",
-		"--json", "name",
-		"--json", "parent",
-		"--json", "defaultBranchRef",
+		"--json", "owner,name,parent,defaultBranchRef",
+		// disable colored outputs (https://github.com/seachicken/gh-poi/issues/79)
+		"--jq", ".",
 	}
 	return conn.run(ctx, "gh", args, None)
 }
@@ -101,6 +100,7 @@ func (conn *Connection) GetPullRequests(
 	args := []string{
 		"api", "graphql",
 		"--hostname", hostname,
+		"--jq", ".",
 		"-f", fmt.Sprintf(`query=query {
   search(type: ISSUE, query: "is:pr %s %s", last: 100) {
     issueCount
diff --git a/poi.go b/poi.go
index 687a6a7..f15f778 100644
--- a/poi.go
+++ b/poi.go
@@ -145,9 +145,11 @@ func GetBranches(ctx context.Context, remote Remote, connection Connection, dryR
 			return nil, err
 		}
 
-		if pr, err := toPullRequests(json); err == nil {
-			prs = append(prs, pr...)
+		pr, err := toPullRequests(json)
+		if err != nil {
+			return nil, err
 		}
+		prs = append(prs, pr...)
 	}
 
 	branches = applyPullRequest(ctx, branches, prs, connection)