diff --git a/src/models/completionmodel.cpp b/src/models/completionmodel.cpp
index d6cfa005b..3092143cb 100644
--- a/src/models/completionmodel.cpp
+++ b/src/models/completionmodel.cpp
@@ -87,7 +87,7 @@ QVariant CompletionModel::data(const QModelIndex &index, int role) const
             return m_filterModel->data(filterIndex, RoomListModel::CanonicalAliasRole);
         }
         if (role == IconNameRole) {
-            return m_filterModel->data(filterIndex, RoomListModel::AvatarRole);
+            return QStringLiteral("image://mxc//%1").arg(m_filterModel->data(filterIndex, RoomListModel::AvatarRole).toString());
         }
     }
     if (m_autoCompletionType == Emoji) {
diff --git a/src/qml/Component/ChatBox/CompletionMenu.qml b/src/qml/Component/ChatBox/CompletionMenu.qml
index bc1de4a07..36e586f25 100644
--- a/src/qml/Component/ChatBox/CompletionMenu.qml
+++ b/src/qml/Component/ChatBox/CompletionMenu.qml
@@ -71,7 +71,7 @@ QQC2.Popup {
                     visible: completionDelegate.iconName !== "invalid"
                     Layout.preferredWidth: Kirigami.Units.iconSizes.medium
                     Layout.preferredHeight: Kirigami.Units.iconSizes.medium
-                    source: completionDelegate.iconName === "invalid" ? "" : ("image://" + completionDelegate.iconName)
+                    source: completionDelegate.iconName === "invalid" ? "" : completionDelegate.iconName
                     name: completionDelegate.text
                 }
                 Delegates.SubtitleContentItem {