diff --git a/commands/merge.go b/commands/merge.go
index 37f1b262..6923fe79 100644
--- a/commands/merge.go
+++ b/commands/merge.go
@@ -58,7 +58,7 @@ func fetchAndMerge(args *Args, pullRequest *octokat.PullRequest) error {
 	mergeHead := fmt.Sprintf("%s/%s", user, branch)
 	ref := fmt.Sprintf("+refs/heads/%s:refs/remotes/%s", branch, mergeHead)
 	args.Before("git", "fetch", url, ref)
-	mergeMsg := fmt.Sprintf("Merge pull request #%v from %s\n\n%s", pullRequest.Id, mergeHead, pullRequest.Title)
+	mergeMsg := fmt.Sprintf("Merge pull request #%v from %s\n\n%s", pullRequest.Number, mergeHead, pullRequest.Title)
 	args.AppendParams(mergeHead, "--no-ff", "-m", mergeMsg)
 
 	return nil
diff --git a/commands/merge_test.go b/commands/merge_test.go
index 49603b0c..09dc36b2 100644
--- a/commands/merge_test.go
+++ b/commands/merge_test.go
@@ -8,12 +8,11 @@ import (
 
 func TestFetchAndMerge(t *testing.T) {
 	url := "https://github.com/jingweno/gh/pull/73"
+	number := 73
+	title := "title"
 
 	args := NewArgs([]string{"merge", url})
 
-	id := 73
-	title := "title"
-
 	userLogin := "jingweno"
 	user := octokat.User{Login: userLogin}
 
@@ -23,7 +22,7 @@ func TestFetchAndMerge(t *testing.T) {
 	headRef := "new-feature"
 	head := octokat.Commit{Ref: headRef, Repo: repo}
 
-	pullRequest := octokat.PullRequest{Id: id, Title: title, HTMLURL: url, User: user, Head: head}
+	pullRequest := octokat.PullRequest{Number: number, Title: title, HTMLURL: url, User: user, Head: head}
 
 	err := fetchAndMerge(args, &pullRequest)
 	assert.Equal(t, nil, err)