diff --git a/code/modules/power/gravitygenerator.dm b/code/modules/power/gravitygenerator.dm
index 78aa4731953..f9b4917e4dc 100644
--- a/code/modules/power/gravitygenerator.dm
+++ b/code/modules/power/gravitygenerator.dm
@@ -78,6 +78,7 @@ GLOBAL_LIST_EMPTY(gravity_generators)
 /obj/machinery/gravity_generator/part/Destroy()
 	atom_break()
 	if(main_part)
+		main_part.generator_parts -= src
 		UnregisterSignal(main_part, COMSIG_ATOM_UPDATED_ICON)
 		main_part = null
 	return ..()