diff --git a/tools/uncrustify.cfg b/tools/uncrustify.cfg
index 88127112e..221fb458e 100644
--- a/tools/uncrustify.cfg
+++ b/tools/uncrustify.cfg
@@ -372,7 +372,7 @@ sp_inside_square                = ignore   # ignore/add/remove/force
 sp_inside_square_oc_array       = ignore   # ignore/add/remove/force
 
 # Add or remove space after ',', i.e. 'a,b' vs. 'a, b'.
-sp_after_comma                  = ignore   # ignore/add/remove/force
+sp_after_comma                  = add      # ignore/add/remove/force
 
 # Add or remove space before ','.
 #