diff --git a/grub-core/Makefile.core.def b/grub-core/Makefile.core.def
index 2dfa22a92..8dcd0e5a9 100644
--- a/grub-core/Makefile.core.def
+++ b/grub-core/Makefile.core.def
@@ -1961,6 +1961,11 @@ module = {
   common = tests/example_functional_test.c;
 };
 
+module = {
+  name = strtoull_test;
+  common = tests/strtoull_test.c;
+};
+
 module = {
   name = setjmp_test;
   common = tests/setjmp_test.c;