diff --git a/mk/main.mk b/mk/main.mk
index 2de18c9871a8d..4c4722a76b939 100644
--- a/mk/main.mk
+++ b/mk/main.mk
@@ -149,7 +149,7 @@ endif
 ifdef TRACE
   CFG_RUSTC_FLAGS += -Z trace
 endif
-ifdef CFG_ENABLE_RPATH
+ifndef CFG_DISABLE_RPATH
 CFG_RUSTC_FLAGS += -C rpath
 endif