diff --git a/code/game/machinery/buttons.dm b/code/game/machinery/buttons.dm
index 10e10e878a..7c1904d2fe 100644
--- a/code/game/machinery/buttons.dm
+++ b/code/game/machinery/buttons.dm
@@ -105,8 +105,8 @@
 /obj/machinery/button/emag_act(mob/user)
 	if(emagged)
 		return
-	req_access = null
-	req_one_access = null
+	req_access = list()
+	req_one_access = list()
 	playsound(src, "sparks", 100, 1)
 	emagged = TRUE
 
diff --git a/code/game/mecha/mech_fabricator.dm b/code/game/mecha/mech_fabricator.dm
index 14efd0a610..79c4971665 100644
--- a/code/game/mecha/mech_fabricator.dm
+++ b/code/game/mecha/mech_fabricator.dm
@@ -76,7 +76,7 @@
 	if(emagged)
 		return
 	emagged = TRUE
-	req_access = null
+	req_access = list()
 	say("DB error \[Code 0x00F1\]")
 	sleep(10)
 	say("Attempting auto-repair...")
diff --git a/code/modules/mob/living/silicon/silicon.dm b/code/modules/mob/living/silicon/silicon.dm
index 4d3c468191..562b51945b 100644
--- a/code/modules/mob/living/silicon/silicon.dm
+++ b/code/modules/mob/living/silicon/silicon.dm
@@ -36,11 +36,11 @@
 	var/d_hud = DATA_HUD_DIAGNOSTIC //There is only one kind of diag hud
 
 	var/law_change_counter = 0
-	var/obj/machinery/camera/builtInCamera = null
-	var/updating = FALSE //portable camera camerachunk update
+	var/obj/machinery/camera/builtInCamera = null
+	var/updating = FALSE //portable camera camerachunk update
 
 /mob/living/silicon/Initialize()
-	. = ..()
+	. = ..()
 	GLOB.silicon_mobs += src
 	var/datum/atom_hud/data/diagnostic/diag_hud = GLOB.huds[DATA_HUD_DIAGNOSTIC]
 	diag_hud.add_to_hud(src)
@@ -56,7 +56,7 @@
 /mob/living/silicon/Destroy()
 	radio = null
 	aicamera = null
-	QDEL_NULL(builtInCamera)
+	QDEL_NULL(builtInCamera)
 	GLOB.silicon_mobs -= src
 	return ..()
 
@@ -310,7 +310,7 @@
 	else	//For department channels, if any, given by the internal radio.
 		for(var/key in GLOB.department_radio_keys)
 			if(GLOB.department_radio_keys[key] == Autochan)
-				radiomod = key
+				radiomod = ":" + key
 				break
 
 	to_chat(src, "<span class='notice'>Automatic announcements [Autochan == "None" ? "will not use the radio." : "set to [Autochan]."]</span>")
diff --git a/code/modules/shuttle/computer.dm b/code/modules/shuttle/computer.dm
index bdaac1d3cb..a3ebba05a1 100644
--- a/code/modules/shuttle/computer.dm
+++ b/code/modules/shuttle/computer.dm
@@ -78,7 +78,7 @@
 /obj/machinery/computer/shuttle/emag_act(mob/user)
 	if(emagged)
 		return
-	req_access = null
+	req_access = list()
 	emagged = TRUE
 	to_chat(user, "<span class='notice'>You fried the consoles ID checking system.</span>")