diff --git a/src/base/utils/fs.cpp b/src/base/utils/fs.cpp
index eabe5a91d..31d721400 100644
--- a/src/base/utils/fs.cpp
+++ b/src/base/utils/fs.cpp
@@ -236,7 +236,19 @@ bool Utils::Fs::isValidFileSystemName(const QString &name, bool allowSeparators)
 {
     if (name.isEmpty()) return false;
 
-    const QRegularExpression regex(allowSeparators ? "[:?\"*<>|]" : "[\\\\/:?\"*<>|]");
+#if defined(Q_OS_WIN)
+    const QRegularExpression regex {allowSeparators
+        ? QLatin1String("[:?\"*<>|]")
+        : QLatin1String("[\\\\/:?\"*<>|]")};
+#elif defined(Q_OS_MACOS)
+    const QRegularExpression regex {allowSeparators
+        ? QLatin1String("[\\0:]")
+        : QLatin1String("[\\0/:]")};
+#else
+    const QRegularExpression regex {allowSeparators
+        ? QLatin1String("[\\0]")
+        : QLatin1String("[\\0/]")};
+#endif
     return !name.contains(regex);
 }
 
diff --git a/src/gui/torrentcontenttreeview.cpp b/src/gui/torrentcontenttreeview.cpp
index 285d3f568..6459f6cf5 100644
--- a/src/gui/torrentcontenttreeview.cpp
+++ b/src/gui/torrentcontenttreeview.cpp
@@ -109,7 +109,7 @@ void TorrentContentTreeView::renameSelectedFile(BitTorrent::TorrentHandle *torre
             , modelIndex.data().toString(), &ok, isFile).trimmed();
     if (!ok) return;
 
-    if (newName.isEmpty() || !Utils::Fs::isValidFileSystemName(newName)) {
+    if (!Utils::Fs::isValidFileSystemName(newName)) {
         RaisedMessageBox::warning(this, tr("Rename error"),
                                   tr("The name is empty or contains forbidden characters, please choose a different one."),
                                   QMessageBox::Ok);
@@ -228,7 +228,7 @@ void TorrentContentTreeView::renameSelectedFile(BitTorrent::TorrentInfo &torrent
             , modelIndex.data().toString(), &ok, isFile).trimmed();
     if (!ok) return;
 
-    if (newName.isEmpty() || !Utils::Fs::isValidFileSystemName(newName)) {
+    if (!Utils::Fs::isValidFileSystemName(newName)) {
         RaisedMessageBox::warning(this, tr("Rename error"),
                                   tr("The name is empty or contains forbidden characters, please choose a different one."),
                                   QMessageBox::Ok);