diff --git a/drivers/gpu/drm/Makefile b/drivers/gpu/drm/Makefile
index c0d1aed8588b58a165824c526116ee3c7ae754cd..d00c389f24bf6512be6916e987c3314d589b7a5f 100644
--- a/drivers/gpu/drm/Makefile
+++ b/drivers/gpu/drm/Makefile
@@ -38,7 +38,7 @@ drm_kms_helper-$(CONFIG_DRM_KMS_CMA_HELPER) += drm_fb_cma_helper.o
 drm_kms_helper-$(CONFIG_DRM_DP_AUX_CHARDEV) += drm_dp_aux_dev.o
 
 obj-$(CONFIG_DRM_KMS_HELPER) += drm_kms_helper.o
-obj-$(CONFIG_DRM_DEBUG_MM_SELFTEST) += selftests/test-drm_mm.o
+obj-$(CONFIG_DRM_DEBUG_MM_SELFTEST) += selftests/
 
 CFLAGS_drm_trace_points.o := -I$(src)
 
diff --git a/drivers/gpu/drm/selftests/Makefile b/drivers/gpu/drm/selftests/Makefile
new file mode 100644
index 0000000000000000000000000000000000000000..4aebfc7f27d4dc305e58b3c949efb1901ea61376
--- /dev/null
+++ b/drivers/gpu/drm/selftests/Makefile
@@ -0,0 +1 @@
+obj-$(CONFIG_DRM_DEBUG_MM_SELFTEST) += test-drm_mm.o