diff --git a/code/modules/reagents/chemistry/machinery/chem_dispenser.dm b/code/modules/reagents/chemistry/machinery/chem_dispenser.dm
index 06d9561744f..f7aadf04b8c 100644
--- a/code/modules/reagents/chemistry/machinery/chem_dispenser.dm
+++ b/code/modules/reagents/chemistry/machinery/chem_dispenser.dm
@@ -331,6 +331,9 @@
 
 					var/datum/reagents/holder = beaker.reagents
 					var/to_dispense = max(0, min(amount, holder.maximum_volume - holder.total_volume))
+					if(!to_dispense)
+						say("The container is full!")
+						return
 					if(!cell.use(to_dispense * power_cost))
 						say("Not enough energy to complete operation!")
 						return