diff --git a/sample-swift/SendBird-iOS/GroupChannel/ViewCell/CreateGroupChannelUserListTableViewCell.swift b/sample-swift/SendBird-iOS/GroupChannel/ViewCell/CreateGroupChannelUserListTableViewCell.swift
index 4767c41..d65a32c 100644
--- a/sample-swift/SendBird-iOS/GroupChannel/ViewCell/CreateGroupChannelUserListTableViewCell.swift
+++ b/sample-swift/SendBird-iOS/GroupChannel/ViewCell/CreateGroupChannelUserListTableViewCell.swift
@@ -28,8 +28,8 @@ class CreateGroupChannelUserListTableViewCell: UITableViewCell {
     func setModel(aUser: SBDUser) {
         self.user = aUser
         
-        if self.user.profileUrl != nil {
-            self.profileImageView.af_setImage(withURL: URL(string: self.user.profileUrl!)!, placeholderImage:UIImage(named: "img_profile"))
+        if let profileUrl = self.user.profileUrl, !profileUrl.isEmpty {
+            self.profileImageView.af_setImage(withURL: URL(string: profileUrl)!, placeholderImage:UIImage(named: "img_profile"))
         }
         else {
             self.profileImageView.image = UIImage(named: "img_profile")
diff --git a/sample-swift/SendBird-iOS/GroupChannel/ViewCell/SelectedUserListCollectionViewCell.swift b/sample-swift/SendBird-iOS/GroupChannel/ViewCell/SelectedUserListCollectionViewCell.swift
index d50c9e8..95eceae 100644
--- a/sample-swift/SendBird-iOS/GroupChannel/ViewCell/SelectedUserListCollectionViewCell.swift
+++ b/sample-swift/SendBird-iOS/GroupChannel/ViewCell/SelectedUserListCollectionViewCell.swift
@@ -27,8 +27,8 @@ class SelectedUserListCollectionViewCell: UICollectionViewCell {
     func setModel(aUser: SBDUser) {
         self.user = aUser
         
-        if self.user.profileUrl != nil {
-            self.profileImageView.af_setImage(withURL: URL(string: self.user.profileUrl!)!, placeholderImage:UIImage(named: "img_profile"))
+        if let profileUrl = self.user.profileUrl, !profileUrl.isEmpty {
+            self.profileImageView.af_setImage(withURL: URL(string: profileUrl)!, placeholderImage:UIImage(named: "img_profile"))
         }
         else {
             self.profileImageView.image = UIImage(named: "img_profile")