diff --git a/Makefile.iptrules.in b/Makefile.iptrules.in
index 915fd75..d332146 100644
--- a/Makefile.iptrules.in
+++ b/Makefile.iptrules.in
@@ -10,8 +10,8 @@ CC              = @CC@
 CCLD            = ${CC}
 
 regular_CFLAGS  = @regular_CFLAGS@
-xtables_CFLAGS  = @xtables_CFLAGS@
-AM_CFLAGS       = ${regular_CFLAGS} ${xtables_CFLAGS}
+libxtables_CFLAGS = @libxtables_CFLAGS@
+AM_CFLAGS         = ${regular_CFLAGS} ${libxtables_CFLAGS}
 AM_DEPFLAGS     = -Wp,-MMD,$(@D)/.$(@F).d,-MT,$@
 
 AM_DEFAULT_VERBOSITY = 0
diff --git a/configure.ac b/configure.ac
index 28612f4..04652f3 100644
--- a/configure.ac
+++ b/configure.ac
@@ -39,10 +39,10 @@ if [[ -n "$xtables_location" ]]; then
 	AC_MSG_CHECKING([xtables.h presence])
 	if [[ -f "$xtables_location/xtables.h" ]]; then
 		AC_MSG_RESULT([$xtables_location/xtables.h])
-		xtables_CFLAGS="-I $xtables_location";
+		libxtables_CFLAGS="-I $xtables_location";
 	elif [[ -f "$xtables_location/include/xtables.h" ]]; then
 		AC_MSG_RESULT([$xtables_location/include/xtables.h])
-		xtables_CFLAGS="-I $xtables_location/include";
+		libxtables_CFLAGS="-I $xtables_location/include";
 	fi;
 	if [[ -z "$xtables_CFLAGS" ]]; then
 		if [[ -f "$includedir/xtables.h" ]]; then
@@ -51,6 +51,9 @@ if [[ -n "$xtables_location" ]]; then
 			AC_MSG_RESULT([no])
 		fi;
 	fi;
+	libxtables_LIBS="-lxtables";
+	AC_SUBST([libxtables_CFLAGS])
+	AC_SUBST([libxtables_LIBS])
 else
 	PKG_CHECK_MODULES([libxtables], [xtables >= 1.4.3])
 fi;
@@ -104,7 +107,6 @@ elif test \( "$kmajor" -lt 2 -o "$kminor" -lt 6 -o "$kmicro" -lt 17 \) -o \
 fi;
 
 AC_SUBST([regular_CFLAGS])
-AC_SUBST([xtables_CFLAGS])
 AC_SUBST([kinclude_CFLAGS])
 AC_SUBST([kbuilddir])
 AC_SUBST([ksourcedir])