diff --git a/src/Make_all.mak b/src/Make_all.mak
index 49ad4f0..79b8b94 100644
--- a/src/Make_all.mak
+++ b/src/Make_all.mak
@@ -2,7 +2,8 @@
 # Common Makefile, defines the list of tests to run.
 #
 
-# Individual tests, including the ones part of test_alot
+# Individual tests, including the ones part of test_alot.
+# Please keep sorted up to test_alot.
 NEW_TESTS = \
 	test_arglist \
 	test_arabic \
@@ -52,6 +53,7 @@
 	test_exists_autocmd \
 	test_expand \
 	test_expand_dllpath \
+	test_expand_func \
 	test_expr \
 	test_expr_utf8 \
 	test_farsi \