diff --git a/code/modules/clothing/head/hardhat.dm b/code/modules/clothing/head/hardhat.dm
index 81f93572029..cb1665dea93 100644
--- a/code/modules/clothing/head/hardhat.dm
+++ b/code/modules/clothing/head/hardhat.dm
@@ -17,6 +17,7 @@
 		on = !on
 		icon_state = "hardhat[on]_[item_color]"
 		item_state = "hardhat[on]_[item_color]"
+		user.update_inv_head()	//so our mob-overlays update
 
 		if(on)	user.AddLuminosity(brightness_on)
 		else	user.AddLuminosity(-brightness_on)