diff --git a/python/plugins/processing/algs/saga/description/UserDefinedFilter.txt b/python/plugins/processing/algs/saga/description/UserDefinedFilter.txt
index b382bdb0ac8c..5dbaf76a864c 100644
--- a/python/plugins/processing/algs/saga/description/UserDefinedFilter.txt
+++ b/python/plugins/processing/algs/saga/description/UserDefinedFilter.txt
@@ -2,5 +2,5 @@ User Defined Filter
 grid_filter
 QgsProcessingParameterRasterLayer|INPUT|Grid|None|False
 QgsProcessingParameterFeatureSource|FILTER|Filter Matrix|5|None|True
-QgsProcessingParameterMatrix|FILTER_3X3|Default Filter Matrix (3x3)|3|True|1;2;3
+QgsProcessingParameterMatrix|FILTER_3X3|Default Filter Matrix (3x3)|3|True|1;2;3|,,,,,,,,
 QgsProcessingParameterRasterDestination|RESULT|Filtered Grid