diff --git a/src/tests/kfileitemmodeltest.cpp b/src/tests/kfileitemmodeltest.cpp
index 2f258d17d9..c539799707 100644
--- a/src/tests/kfileitemmodeltest.cpp
+++ b/src/tests/kfileitemmodeltest.cpp
@@ -1553,22 +1553,22 @@ void KFileItemModelTest::testChangeSortRoleWhileFiltering()
 
     KIO::UDSEntry entry[3];
 
-    entry[0].insert(KIO::UDSEntry::UDS_NAME, "a.txt");
-    entry[0].insert(KIO::UDSEntry::UDS_USER, "user-b");
+    entry[0].fastInsert(KIO::UDSEntry::UDS_NAME, "a.txt");
+    entry[0].fastInsert(KIO::UDSEntry::UDS_USER, "user-b");
 
-    entry[1].insert(KIO::UDSEntry::UDS_NAME, "b.txt");
-    entry[1].insert(KIO::UDSEntry::UDS_USER, "user-c");
+    entry[1].fastInsert(KIO::UDSEntry::UDS_NAME, "b.txt");
+    entry[1].fastInsert(KIO::UDSEntry::UDS_USER, "user-c");
 
-    entry[2].insert(KIO::UDSEntry::UDS_NAME, "c.txt");
-    entry[2].insert(KIO::UDSEntry::UDS_USER, "user-a");
+    entry[2].fastInsert(KIO::UDSEntry::UDS_NAME, "c.txt");
+    entry[2].fastInsert(KIO::UDSEntry::UDS_USER, "user-a");
 
     for (int i = 0; i < 3; ++i) {
-        entry[i].insert(KIO::UDSEntry::UDS_FILE_TYPE, 0100000);    // S_IFREG might not be defined on non-Unix platforms.
-        entry[i].insert(KIO::UDSEntry::UDS_ACCESS, 07777);
-        entry[i].insert(KIO::UDSEntry::UDS_SIZE, 0);
-        entry[i].insert(KIO::UDSEntry::UDS_MODIFICATION_TIME, 0);
-        entry[i].insert(KIO::UDSEntry::UDS_GROUP, "group");
-        entry[i].insert(KIO::UDSEntry::UDS_ACCESS_TIME, 0);
+        entry[i].fastInsert(KIO::UDSEntry::UDS_FILE_TYPE, 0100000);    // S_IFREG might not be defined on non-Unix platforms.
+        entry[i].fastInsert(KIO::UDSEntry::UDS_ACCESS, 07777);
+        entry[i].fastInsert(KIO::UDSEntry::UDS_SIZE, 0);
+        entry[i].fastInsert(KIO::UDSEntry::UDS_MODIFICATION_TIME, 0);
+        entry[i].fastInsert(KIO::UDSEntry::UDS_GROUP, "group");
+        entry[i].fastInsert(KIO::UDSEntry::UDS_ACCESS_TIME, 0);
         items.append(KFileItem(entry[i], m_testDir->url(), false, true));
     }