diff --git a/rust/Makefile b/rust/Makefile
index 7dbf9abe0d019..e5619f25b55ca 100644
--- a/rust/Makefile
+++ b/rust/Makefile
@@ -173,7 +173,6 @@ quiet_cmd_rustdoc_test_kernel = RUSTDOC TK $<
 	mkdir -p $(objtree)/$(obj)/test/doctests/kernel; \
 	OBJTREE=$(abspath $(objtree)) \
 	$(RUSTDOC) --test $(rust_flags) \
-		@$(objtree)/include/generated/rustc_cfg \
 		-L$(objtree)/$(obj) --extern alloc --extern kernel \
 		--extern build_error --extern macros \
 		--extern bindings --extern uapi \