diff --git a/code/modules/power/supermatter/supermatter_delamination/cascade_delam.dm b/code/modules/power/supermatter/supermatter_delamination/cascade_delam.dm
index 4a14ba4144d..86d466871b2 100644
--- a/code/modules/power/supermatter/supermatter_delamination/cascade_delam.dm
+++ b/code/modules/power/supermatter/supermatter_delamination/cascade_delam.dm
@@ -85,6 +85,8 @@
 	return messages
 
 /datum/sm_delam/cascade/proc/announce_cascade(obj/machinery/power/supermatter_crystal/sm)
+	if(QDELETED(sm))
+		return FALSE
 	if(!can_select(sm))
 		return FALSE
 	priority_announce("Attention: Long range anomaly scans indicate abnormal quantities of harmonic flux originating from \