diff --git a/lib/Makefile b/lib/Makefile
index 180dd4d..fdeb7e3 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -31,7 +31,7 @@
 obj-y += string_helpers.o
 obj-$(CONFIG_TEST_STRING_HELPERS) += test-string_helpers.o
 obj-y += hexdump.o
-obj-$(CONFIG_TEST_HEXDUMP) += test-hexdump.o
+obj-$(CONFIG_TEST_HEXDUMP) += test_hexdump.o
 obj-y += kstrtox.o
 obj-$(CONFIG_TEST_BPF) += test_bpf.o
 obj-$(CONFIG_TEST_FIRMWARE) += test_firmware.o