diff --git a/code/modules/client/preferences.dm b/code/modules/client/preferences.dm
index 0f04710421f..3b0d17bc471 100644
--- a/code/modules/client/preferences.dm
+++ b/code/modules/client/preferences.dm
@@ -500,7 +500,10 @@ GLOBAL_LIST_EMPTY(preferences_datums)
 				else
 					job_preferences[other_job] = JP_MEDIUM
 
-	job_preferences[job.title] = level
+	if(level == null)
+		job_preferences -= job.title
+	else
+		job_preferences[job.title] = level
 
 	return TRUE