diff --git a/python/plugins/processing/algs/qgis/PolarPlot.py b/python/plugins/processing/algs/qgis/PolarPlot.py
index 2d89b08540c7..07fa5e5e55ee 100644
--- a/python/plugins/processing/algs/qgis/PolarPlot.py
+++ b/python/plugins/processing/algs/qgis/PolarPlot.py
@@ -92,7 +92,7 @@ def processAlgorithm(self, parameters, context, feedback):
         values = vector.values(source, valuefieldname)
 
         data = [go.Barpolar(r=values[valuefieldname],
-                        theta=np.degrees(np.arange(0.0, 2 * np.pi, 2 * np.pi / len(values[valuefieldname]))))]
+                            theta=np.degrees(np.arange(0.0, 2 * np.pi, 2 * np.pi / len(values[valuefieldname]))))]
 
         plt.offline.plot(data, filename=output, auto_open=False)