diff --git a/src/corelib/io/qfilesystemengine_unix.cpp b/src/corelib/io/qfilesystemengine_unix.cpp
index 150fb18527..054e9ed2fe 100644
--- a/src/corelib/io/qfilesystemengine_unix.cpp
+++ b/src/corelib/io/qfilesystemengine_unix.cpp
@@ -1123,6 +1123,8 @@ static bool createDirectoryWithParents(const QByteArray &nativeName, bool should
 
     if (shouldMkdirFirst && QT_MKDIR(nativeName, 0777) == 0)
         return true;
+    if (errno == EISDIR)
+        return true;
     if (errno == EEXIST)
         return isDir(nativeName);
     if (errno != ENOENT)
diff --git a/tests/auto/corelib/io/qdir/tst_qdir.cpp b/tests/auto/corelib/io/qdir/tst_qdir.cpp
index 7e77e22f67..8b6b390050 100644
--- a/tests/auto/corelib/io/qdir/tst_qdir.cpp
+++ b/tests/auto/corelib/io/qdir/tst_qdir.cpp
@@ -466,10 +466,10 @@ void tst_QDir::makedirReturnCode()
     QVERIFY(!QDir::current().mkdir(dirName)); // calling mkdir on an existing dir will fail.
     QVERIFY(QDir::current().mkpath(dirName)); // calling mkpath on an existing dir will pass
 
-#ifdef Q_OS_WIN
-    // the next line specifically targets Windows, see QTBUG-85997
-    QVERIFY(QDir().mkpath(QDir::rootPath())); // calling mkpath on an existing drive name will pass
-#endif
+    // the next line specifically targets Windows and macOS (QTBUG-85997, QTBUG-97110)
+    // calling mkpath on an existing drive name (Windows) or root path (macOS) shall pass
+    QVERIFY(QDir().mkpath(QDir::rootPath()));
+    QVERIFY(!QDir().mkdir(QDir::rootPath()));
 
     // Remove the directory and create a file with the same path
     QDir::current().rmdir(dirName);