diff --git a/common/Make.rules b/common/Make.rules
index d2149fc..efb1f38 100644
--- a/common/Make.rules
+++ b/common/Make.rules
@@ -81,7 +81,7 @@ pod_clean:
 # =====================
 
 # emits defined capabilities in a simple list, e.g. "CAP_NAME CAP_NAME2"
-CAPABILITIES=$(shell echo "\#include <linux/capability.h>" | cpp -dM | LC_ALL=C sed -n -e '/CAP_EMPTY_SET/d' -e 's/^\#define[ \t]\+CAP_\([A-Z0-9_]\+\)[ \t]\+\([0-9xa-f]\+\)\(.*\)$$/CAP_\1/p' | LC_ALL=C sort)
+CAPABILITIES=$(shell echo "#include <linux/capability.h>" | cpp -dM | LC_ALL=C sed -n -e '/CAP_EMPTY_SET/d' -e 's/^#define[ \t]\+CAP_\([A-Z0-9_]\+\)[ \t]\+\([0-9xa-f]\+\)\(.*\)$$/CAP_\1/p' | LC_ALL=C sort)
 
 .PHONY: list_capabilities
 list_capabilities: /usr/include/linux/capability.h
@@ -102,7 +102,7 @@ FILTER_FAMILIES=PF_UNIX
 __FILTER=$(shell echo $(strip $(FILTER_FAMILIES)) | sed -e 's/ /\\\|/g')
 
 # emits the AF names in a "AF_NAME NUMBER," pattern
-AF_NAMES=$(shell echo "\#include <sys/socket.h>" | cpp -dM | LC_ALL=C sed -n -e '/$(__FILTER)/d' -e 's/PF_LOCAL/PF_UNIX/' -e 's/^\#define[ \t]\+PF_\([A-Z0-9_]\+\)[ \t]\+\([0-9]\+\).*$$/AF_\1 \2,/p' | sort -n -k2)
+AF_NAMES=$(shell echo "#include <sys/socket.h>" | cpp -dM | LC_ALL=C sed -n -e '/$(__FILTER)/d' -e 's/PF_LOCAL/PF_UNIX/' -e 's/^#define[ \t]\+PF_\([A-Z0-9_]\+\)[ \t]\+\([0-9]\+\).*$$/AF_\1 \2,/p' | sort -n -k2)
 
 .PHONY: list_af_names
 list_af_names: