diff --git a/python/plugins/processing/gui/MessageBarProgress.py b/python/plugins/processing/gui/MessageBarProgress.py
index b84cfe20126..a26b529361b 100644
--- a/python/plugins/processing/gui/MessageBarProgress.py
+++ b/python/plugins/processing/gui/MessageBarProgress.py
@@ -40,8 +40,8 @@ class MessageBarProgress(QgsProcessingFeedback):
         self.msg = []
         self.progressMessageBar = \
             iface.messageBar().createMessage(self.tr('Executing algorithm <i>{0}</i>'.format(algname if algname else '')))
-        self.progressChanged.connect(self.progress.setValue)
         self.progress = QProgressBar()
+        self.progressChanged.connect(self.progress.setValue)
         self.progress.setMaximum(100)
         self.progress.setAlignment(Qt.AlignLeft | Qt.AlignVCenter)
         self.progressMessageBar.layout().addWidget(self.progress)