diff --git a/repos/libports/lib/mk/libdrm.mk b/repos/libports/lib/mk/libdrm.mk
index 90ac9c2be4..863ab74b63 100644
--- a/repos/libports/lib/mk/libdrm.mk
+++ b/repos/libports/lib/mk/libdrm.mk
@@ -3,3 +3,5 @@ include $(REP_DIR)/lib/mk/libdrm.inc
 include $(call select_from_repositories,lib/import/import-libdrm.mk)
 
 SRC_CC := ioctl_dummy.cc
+
+CC_OPT_xf86drm += -Wno-unused-variable