diff --git a/tests/Makefile b/tests/Makefile
index 0f3489d4a8..b8d479c99c 100644
--- a/tests/Makefile
+++ b/tests/Makefile
@@ -49,6 +49,7 @@ EXPECT_NAMES=\
 	locale/duplocale \
 	locale/newlocale \
 	locale/setlocale \
+	malloc/usable_size \
 	math \
 	regex \
 	select \