diff --git a/uncrustify-riot.cfg b/uncrustify-riot.cfg
index 968b3bf65a..46e76e1f4b 100644
--- a/uncrustify-riot.cfg
+++ b/uncrustify-riot.cfg
@@ -74,3 +74,9 @@ align_on_tabstop       = TRUE      # align on tabstops
 align_enum_equ_span    = 4         # '=' in enum definition
 align_struct_init_span = 0         # align stuff in a structure init '= { }'
 align_right_cmt_span   = 3         #
+
+#
+# Special cases
+#
+
+set PROTO_WRAP ISR   # Wrap ISR macros like functions