diff --git a/rust/Makefile b/rust/Makefile
index f88d108fbef07a..41ac8401a8bef7 100644
--- a/rust/Makefile
+++ b/rust/Makefile
@@ -283,7 +283,7 @@ quiet_cmd_bindgen = BINDGEN $@
 		$(bindgen_target_cflags) $(bindgen_target_extra)
 
 $(obj)/bindings/bindings_generated.rs: private bindgen_target_flags = \
-    $(shell grep -v '^\#\|^$$' $(srctree)/$(src)/bindgen_parameters)
+    $(shell grep -v '^#\|^$$' $(srctree)/$(src)/bindgen_parameters)
 $(obj)/bindings/bindings_generated.rs: $(src)/bindings/bindings_helper.h \
     $(src)/bindgen_parameters FORCE
 	$(call if_changed_dep,bindgen)