diff --git a/python/plugins/processing/gui/MessageBarProgress.py b/python/plugins/processing/gui/MessageBarProgress.py
index da1abdacd081..e77be8a7e931 100644
--- a/python/plugins/processing/gui/MessageBarProgress.py
+++ b/python/plugins/processing/gui/MessageBarProgress.py
@@ -35,13 +35,20 @@ def __init__(self, algname=None):
         self.progressMessageBar = \
             iface.messageBar().createMessage(self.tr('Executing algorithm <i>{}</i>'.format(algname if algname else '')))
         self.progress = QProgressBar()
-        self.progressChanged.connect(self.progress.setValue)
+        self.progressChanged.connect(self.set_progress_bar_value)
         self.progress.setMaximum(100)
         self.progress.setAlignment(Qt.AlignLeft | Qt.AlignVCenter)
         self.progressMessageBar.layout().addWidget(self.progress)
         self.message_bar_item = iface.messageBar().pushWidget(self.progressMessageBar,
                                                               Qgis.Info)
 
+    def set_progress_bar_value(self, progress: float):
+        """
+        Sets the progress bar value to a rounded int of the algorithm's
+        progress
+        """
+        self.progress.setValue(int(progress))
+
     def reportError(self, msg, fatalError=False):
         self.msg.append(msg)