diff --git a/code/game/machinery/computer/card.dm b/code/game/machinery/computer/card.dm
index 6dc93c86c15..07c74e89bf5 100644
--- a/code/game/machinery/computer/card.dm
+++ b/code/game/machinery/computer/card.dm
@@ -418,7 +418,8 @@ GLOBAL_VAR_INIT(time_last_changed_position, 0)
 						message_admins("[key_name_admin(usr)] has reassigned \"[modify.registered_name]\" from \"[jobnamedata]\" to \"[t1]\".")
 
 					SSjobs.log_job_transfer(modify.registered_name, jobnamedata, t1, scan.registered_name)
-					SSjobs.slot_job_transfer(modify.rank, t1)
+					if(modify.owner_uid)
+						SSjobs.slot_job_transfer(modify.rank, t1)
 
 					var/mob/living/carbon/human/H = modify.getPlayer()
 					if(istype(H))
diff --git a/code/modules/modular_computers/file_system/programs/command/card.dm b/code/modules/modular_computers/file_system/programs/command/card.dm
index 609bb6cf9fb..0ec75c6d74e 100644
--- a/code/modules/modular_computers/file_system/programs/command/card.dm
+++ b/code/modules/modular_computers/file_system/programs/command/card.dm
@@ -250,7 +250,8 @@
 						message_admins("[key_name_admin(usr)] has reassigned \"[modify.registered_name]\" from \"[jobnamedata]\" to \"[t1]\".")
 
 					SSjobs.log_job_transfer(modify.registered_name, jobnamedata, t1, scan.registered_name)
-					SSjobs.slot_job_transfer(modify.rank, t1)
+					if(modify.owner_uid)
+						SSjobs.slot_job_transfer(modify.rank, t1)
 
 					var/mob/living/carbon/human/H = modify.getPlayer()
 					if(istype(H))