diff --git a/models/issue_comment.go b/models/issue_comment.go
index 4c337693d..6930c62e2 100644
--- a/models/issue_comment.go
+++ b/models/issue_comment.go
@@ -315,6 +315,12 @@ func createComment(e *xorm.Session, opts *CreateCommentOptions) (_ *Comment, err
 	if opts.Label != nil {
 		LabelID = opts.Label.ID
 	}
+
+	var depId int64 = 0
+	if opts.DependentIssue != nil {
+		depId = opts.DependentIssue.ID
+	}
+
 	comment := &Comment{
 		Type:           opts.Type,
 		PosterID:       opts.Doer.ID,
@@ -341,7 +347,6 @@ func createComment(e *xorm.Session, opts *CreateCommentOptions) (_ *Comment, err
 	// It seems to be inserted, but isnt. (Doesn't return an error, raw pasting
 	// the sql query in a database console does work). But after the function
 	// is called, there is no entry in the database. At least for type 12 and 13.
-
 	_, err = e.Insert(comment)
 	if err != nil {
 		return nil, err
diff --git a/routers/repo/issue.go b/routers/repo/issue.go
index 1a21af460..c14c1076a 100644
--- a/routers/repo/issue.go
+++ b/routers/repo/issue.go
@@ -919,6 +919,23 @@ func NewComment(ctx *context.Context, form auth.CreateCommentForm) {
 			(form.Status == "reopen" || form.Status == "close") &&
 			!(issue.IsPull && issue.PullRequest.HasMerged) {
 
+			// Check for open dependencies
+			if form.Status == "close"{
+
+				canbeClosed := models.IssueNoDependenciesLeft(issue)
+
+				if !canbeClosed {
+					if issue.IsPull{
+						ctx.Flash.Error("You need to close all issues blocking this pull request before you can merge it!")
+						ctx.Redirect(fmt.Sprintf("%s/pulls/%d", ctx.Repo.RepoLink, issue.Index))
+					} else {
+						ctx.Flash.Error("You need to close all issues blocking this issue before you can close it!")
+						ctx.Redirect(fmt.Sprintf("%s/issues/%d", ctx.Repo.RepoLink, issue.Index))
+					}
+					return
+				}
+			}
+
 			// Duplication and conflict check should apply to reopen pull request.
 			var pr *models.PullRequest