diff --git a/apps/multiplatform/common/src/desktopMain/kotlin/chat/simplex/common/views/helpers/DefaultDialog.desktop.kt b/apps/multiplatform/common/src/desktopMain/kotlin/chat/simplex/common/views/helpers/DefaultDialog.desktop.kt
index 7341c6af23..79aaf5c727 100644
--- a/apps/multiplatform/common/src/desktopMain/kotlin/chat/simplex/common/views/helpers/DefaultDialog.desktop.kt
+++ b/apps/multiplatform/common/src/desktopMain/kotlin/chat/simplex/common/views/helpers/DefaultDialog.desktop.kt
@@ -14,10 +14,12 @@ import chat.simplex.res.MR
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.launch
 import java.awt.FileDialog
+import java.awt.event.ActionListener
 import java.io.File
 import javax.swing.JFileChooser
 import javax.swing.filechooser.FileFilter
 import javax.swing.filechooser.FileNameExtensionFilter
+import javax.swing.plaf.basic.BasicFileChooserUI
 
 @Composable
 actual fun DefaultDialog(
@@ -77,6 +79,13 @@ fun FrameWindowScope.FileDialogChooserMultiple(
       fileChooser.dialogTitle = title
       fileChooser.isMultiSelectionEnabled = allowMultiple && isLoad
       fileChooser.isAcceptAllFileFilterUsed = fileFilter == null
+      // Only install the glob bypass for the real file-save case (filename != null). When filename
+      // is null the dialog runs in DIRECTORIES_ONLY mode (e.g. "Save QR code as image"), where the
+      // Save button must approve the selected directory — the literal-filename handler would instead
+      // traverse into it (or no-op on an empty field), making directory selection impossible.
+      if (!isLoad && filename != null && desktopPlatform.isLinux()) {
+        installUnixSaveGlobBypass(fileChooser)
+      }
       if (fileFilter != null && fileFilterDescription != null) {
         fileChooser.addChoosableFileFilter(object: FileFilter() {
           override fun accept(file: File?): Boolean = fileFilter(file)
@@ -120,6 +129,28 @@ fun FrameWindowScope.FileDialogChooserMultiple(
   }
 }
 
+// Replace the Save button's action with a literal-filename handler. This bypasses JFileChooser's
+// glob-on-save behaviour, which mis-handles '[' as a glob char on Unix (breaking filenames like
+// '[1].pdf') and is not a feature of any native OS save dialog — macOS NSSavePanel and native
+// Windows / Linux GTK / KDE save dialogs all treat the typed filename as a literal name.
+private fun installUnixSaveGlobBypass(fc: JFileChooser) {
+  val ui = fc.ui as? BasicFileChooserUI ?: return
+  val original: ActionListener = ui.approveSelectionAction
+  val btn = ui.getDefaultButton(fc) ?: return
+  btn.removeActionListener(original)
+  btn.addActionListener {
+    val name = ui.fileName?.takeIf { it.isNotEmpty() } ?: return@addActionListener
+    val typed = File(name)
+    val target = if (typed.isAbsolute) typed else File(fc.currentDirectory, name)
+    if (target.isDirectory && fc.isTraversable(target)) {
+      fc.currentDirectory = target
+    } else {
+      fc.selectedFile = target
+      fc.approveSelection()
+    }
+  }
+}
+
 /*
 * Has graphic glitches on many Linux distributions, so use only on non-Linux systems. Also file filter doesn't work on Windows
 * */