diff --git a/testsuite/all_sourcecode.tests b/testsuite/all_sourcecode.tests
index 23b8aec88..83b4bd507 100755
--- a/testsuite/all_sourcecode.tests
+++ b/testsuite/all_sourcecode.tests
@@ -56,9 +56,19 @@ rm -f src.typos
 #
 find $srcdir/.. '(' -name '*.c' -o -name '*.h' ')' -print0 | xargs -0 \
 	grep -E -e '\<(bcmp|bcopy|bzero|getwd|index|mktemp|rindex|utimes)\>[[:space:]]*\(' \
-	| sed -e "s:^$srcdir/\.\./::g" > src.obsolete
-testing "Obsolete function usage" "cat src.obsolete" "" "" ""
-rm -f src.obsolete
+	| sed -e "s:^$srcdir/\.\./::g" > src.obsolete.funcs
+testing "Obsolete function usage" "cat src.obsolete.funcs" "" "" ""
+rm -f src.obsolete.funcs
+
+
+#
+# don't allow obsolete headers
+#
+find $srcdir/.. '(' -name '*.c' -o -name '*.h' ')' -print0 | xargs -0 \
+	grep -E -e '\<(malloc|memory)\.h\>' \
+	| sed -e "s:^$srcdir/\.\./::g" > src.obsolete.headers
+testing "Obsolete function usage" "cat src.obsolete.headers" "" "" ""
+rm -f src.obsolete.headers
 
 
 exit $FAILCOUNT