diff --git a/code/game/objects/items/weapons/grenades/chem_grenade.dm b/code/game/objects/items/weapons/grenades/chem_grenade.dm
index b07707107ce..d90f76771ae 100644
--- a/code/game/objects/items/weapons/grenades/chem_grenade.dm
+++ b/code/game/objects/items/weapons/grenades/chem_grenade.dm
@@ -151,6 +151,13 @@
 		if(!has_reagents)
 			icon_state = initial(icon_state) +"_locked"
 			playsound(src.loc, 'sound/items/Screwdriver2.ogg', 50, 1)
+			spawn(0.001) //Otherwise det_time is erroneously set to 0 after this
+			if(istimer(detonator.a_left)) //Make sure description reflects that the timer has been reset
+				var/obj/item/device/assembly/timer/T = detonator.a_left
+				det_time = 10*T.time
+			if(istimer(detonator.a_right))
+				var/obj/item/device/assembly/timer/T = detonator.a_right
+				det_time = 10*T.time
 			return
 
 		playsound(src.loc, 'sound/effects/bamf.ogg', 50, 1)