diff --git a/python/plugins/processing/gui/BatchPanel.py b/python/plugins/processing/gui/BatchPanel.py
index 7c0dc9861ce..7f62a9b011a 100644
--- a/python/plugins/processing/gui/BatchPanel.py
+++ b/python/plugins/processing/gui/BatchPanel.py
@@ -211,10 +211,10 @@ class BatchPanel(BASE, WIDGET):
                     return
             toSave.append({self.PARAMETERS: algParams, self.OUTPUTS: algOutputs})
 
-        filename, __ = str(QFileDialog.getSaveFileName(self,
-                                                       self.tr('Save batch'),
-                                                       None,
-                                                       self.tr('JSON files (*.json)')))
+        filename, __ = QFileDialog.getSaveFileName(self,
+                                                   self.tr('Save batch'),
+                                                   None,
+                                                   self.tr('JSON files (*.json)'))
         if filename:
             if not filename.endswith('.json'):
                 filename += '.json'
diff --git a/python/plugins/processing/modeler/ModelerDialog.py b/python/plugins/processing/modeler/ModelerDialog.py
index e6fdd5224f2..e55654c1ccd 100644
--- a/python/plugins/processing/modeler/ModelerDialog.py
+++ b/python/plugins/processing/modeler/ModelerDialog.py
@@ -474,9 +474,10 @@ class ModelerDialog(BASE, WIDGET):
             self.hasChanged = False
 
     def openModel(self):
-        filename, selected_filter = str(QFileDialog.getOpenFileName(self,
-                                                                    self.tr('Open Model'), ModelerUtils.modelsFolders()[0],
-                                                                    self.tr('Processing models (*.model *.MODEL)')))
+        filename, selected_filter = QFileDialog.getOpenFileName(self,
+                                                                self.tr('Open Model'),
+                                                                ModelerUtils.modelsFolders()[0],
+                                                                self.tr('Processing models (*.model *.MODEL)'))
         if filename:
             try:
                 alg = ModelerAlgorithm.fromFile(filename)