diff --git a/code/game/objects/items/weapons/grenades/chem_grenade.dm b/code/game/objects/items/weapons/grenades/chem_grenade.dm
index d022c335e01..626034de008 100644
--- a/code/game/objects/items/weapons/grenades/chem_grenade.dm
+++ b/code/game/objects/items/weapons/grenades/chem_grenade.dm
@@ -6,6 +6,7 @@
 	w_class = 2.0
 	force = 2.0
 	det_time = null
+	unacidable = 1
 
 	var/stage = 0
 	var/state = 0