diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
index 8fe4468f9bda..46342f0198f6 100644
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -252,6 +252,7 @@ DTC_FLAGS += -Wno-unit_address_vs_reg \
 	-Wno-alias_paths \
 	-Wno-graph_child_address \
 	-Wno-graph_port \
+	-Wno-simple_bus_reg \
 	-Wno-unique_unit_address \
 	-Wno-pci_device_reg
 endif