diff --git a/mk/pp.mk b/mk/pp.mk
index bbcb9018f95..aaef946bb29 100644
--- a/mk/pp.mk
+++ b/mk/pp.mk
@@ -8,7 +8,8 @@ else
                          $(S)src/test/*/*/*.rs) \
               $(wildcard $(S)src/fuzzer/*.rs)
 
-  PP_INPUTS_FILTERED = $(shell echo $(PP_INPUTS) | xargs grep -L no-reformat)
+  PP_INPUTS_FILTERED = $(shell echo $(PP_INPUTS) | xargs grep -L \
+                       "no-reformat\|xfail-pretty\|xfail-stage2")
 endif
 
 reformat: $(SREQ1)