diff --git a/routers/api/v1/repo/pull.go b/routers/api/v1/repo/pull.go
index 8297e35a17..158abd4651 100644
--- a/routers/api/v1/repo/pull.go
+++ b/routers/api/v1/repo/pull.go
@@ -1034,7 +1034,7 @@ func parseCompareInfo(ctx *context.APIContext, form api.CreatePullRequestOption)
 		return nil, nil, nil, nil, "", ""
 	}
 
-	compareInfo, err := headGitRepo.GetCompareInfo(repo_model.RepoPath(baseRepo.Owner.Name, baseRepo.Name), baseBranch, headBranch, true, false)
+	compareInfo, err := headGitRepo.GetCompareInfo(repo_model.RepoPath(baseRepo.Owner.Name, baseRepo.Name), baseBranch, headBranch, false, false)
 	if err != nil {
 		headGitRepo.Close()
 		ctx.Error(http.StatusInternalServerError, "GetCompareInfo", err)
@@ -1211,9 +1211,9 @@ func GetPullRequestCommits(ctx *context.APIContext) {
 	}
 	defer baseGitRepo.Close()
 	if pr.HasMerged {
-		prInfo, err = baseGitRepo.GetCompareInfo(pr.BaseRepo.RepoPath(), pr.MergeBase, pr.GetGitRefName(), true, false)
+		prInfo, err = baseGitRepo.GetCompareInfo(pr.BaseRepo.RepoPath(), pr.MergeBase, pr.GetGitRefName(), false, false)
 	} else {
-		prInfo, err = baseGitRepo.GetCompareInfo(pr.BaseRepo.RepoPath(), pr.BaseBranch, pr.GetGitRefName(), true, false)
+		prInfo, err = baseGitRepo.GetCompareInfo(pr.BaseRepo.RepoPath(), pr.BaseBranch, pr.GetGitRefName(), false, false)
 	}
 	if err != nil {
 		ctx.ServerError("GetCompareInfo", err)
diff --git a/routers/web/repo/pull.go b/routers/web/repo/pull.go
index 984954b704..6e68fd0c69 100644
--- a/routers/web/repo/pull.go
+++ b/routers/web/repo/pull.go
@@ -358,7 +358,7 @@ func PrepareMergedViewPullInfo(ctx *context.Context, issue *models.Issue) *git.C
 	}
 
 	compareInfo, err := ctx.Repo.GitRepo.GetCompareInfo(ctx.Repo.Repository.RepoPath(),
-		baseCommit, pull.GetGitRefName(), true, false)
+		baseCommit, pull.GetGitRefName(), false, false)
 	if err != nil {
 		if strings.Contains(err.Error(), "fatal: Not a valid object name") || strings.Contains(err.Error(), "unknown revision or path not in the working tree") {
 			ctx.Data["IsPullRequestBroken"] = true
@@ -441,7 +441,7 @@ func PrepareViewPullInfo(ctx *context.Context, issue *models.Issue) *git.Compare
 		}
 
 		compareInfo, err := baseGitRepo.GetCompareInfo(pull.BaseRepo.RepoPath(),
-			pull.MergeBase, pull.GetGitRefName(), true, false)
+			pull.MergeBase, pull.GetGitRefName(), false, false)
 		if err != nil {
 			if strings.Contains(err.Error(), "fatal: Not a valid object name") {
 				ctx.Data["IsPullRequestBroken"] = true
@@ -557,7 +557,7 @@ func PrepareViewPullInfo(ctx *context.Context, issue *models.Issue) *git.Compare
 	}
 
 	compareInfo, err := baseGitRepo.GetCompareInfo(pull.BaseRepo.RepoPath(),
-		git.BranchPrefix+pull.BaseBranch, pull.GetGitRefName(), true, false)
+		git.BranchPrefix+pull.BaseBranch, pull.GetGitRefName(), false, false)
 	if err != nil {
 		if strings.Contains(err.Error(), "fatal: Not a valid object name") {
 			ctx.Data["IsPullRequestBroken"] = true
diff --git a/services/pull/pull.go b/services/pull/pull.go
index 9103da07f4..c1844372ea 100644
--- a/services/pull/pull.go
+++ b/services/pull/pull.go
@@ -82,7 +82,7 @@ func NewPullRequest(repo *repo_model.Repository, pull *models.Issue, labelIDs []
 	defer baseGitRepo.Close()
 
 	compareInfo, err := baseGitRepo.GetCompareInfo(pr.BaseRepo.RepoPath(),
-		git.BranchPrefix+pr.BaseBranch, pr.GetGitRefName(), true, false)
+		git.BranchPrefix+pr.BaseBranch, pr.GetGitRefName(), false, false)
 	if err != nil {
 		return err
 	}