diff --git a/code/__HELPERS/qdel.dm b/code/__HELPERS/qdel.dm
index 14b1f9d9594..e8a11f27a66 100644
--- a/code/__HELPERS/qdel.dm
+++ b/code/__HELPERS/qdel.dm
@@ -1,2 +1,2 @@
 #define QDEL_IN(item, time) addtimer(GLOBAL_PROC, "qdel", time, FALSE, item)
-#define QDEL_NULL(item) qdel(item); item = null
\ No newline at end of file
+#define QDEL_NULL(item) if(item) { qdel(item); item = null }
\ No newline at end of file
diff --git a/code/game/machinery/camera/camera.dm b/code/game/machinery/camera/camera.dm
index 881305948d7..ca312efc6a7 100644
--- a/code/game/machinery/camera/camera.dm
+++ b/code/game/machinery/camera/camera.dm
@@ -51,15 +51,13 @@
 
 /obj/machinery/camera/Destroy()
 	toggle_cam(null, 0) //kick anyone viewing out
-	if(assembly)
-		QDEL_NULL(assembly)
+	QDEL_NULL(assembly)
 	if(istype(bug))
 		bug.bugged_cameras -= src.c_tag
 		if(bug.current == src)
 			bug.current = null
 		bug = null
-	if(wires)
-		QDEL_NULL(wires)
+	QDEL_NULL(wires)
 	cameranet.removeCamera(src) //Will handle removal from the camera network and the chunks, so we don't need to worry about that
 	cameranet.cameras -= src
 	var/area/ai_monitored/A = get_area(src)
diff --git a/code/game/machinery/cloning.dm b/code/game/machinery/cloning.dm
index c75ca58140e..7921defd40f 100644
--- a/code/game/machinery/cloning.dm
+++ b/code/game/machinery/cloning.dm
@@ -112,8 +112,7 @@
 	buf.dna=new
 
 /obj/item/weapon/disk/data/Destroy()
-	if(buf)
-		QDEL_NULL(buf)
+	QDEL_NULL(buf)
 	return ..()
 
 /obj/item/weapon/disk/data/demo
diff --git a/code/game/objects/effects/anomalies.dm b/code/game/objects/effects/anomalies.dm
index e0a6e59da14..89baf450720 100644
--- a/code/game/objects/effects/anomalies.dm
+++ b/code/game/objects/effects/anomalies.dm
@@ -21,8 +21,7 @@
 	poi_list |= src
 
 /obj/effect/anomaly/Destroy()
-	if(aSignal)
-		QDEL_NULL(aSignal)
+	QDEL_NULL(aSignal)
 	poi_list.Remove(src)
 	return ..()
 
diff --git a/code/game/objects/items/weapons/dna_injector.dm b/code/game/objects/items/weapons/dna_injector.dm
index 86ed5f84974..c10872afad0 100644
--- a/code/game/objects/items/weapons/dna_injector.dm
+++ b/code/game/objects/items/weapons/dna_injector.dm
@@ -27,8 +27,7 @@
 		SetValue(value)
 
 /obj/item/weapon/dnainjector/Destroy()
-	if(buf)
-		QDEL_NULL(buf)
+	QDEL_NULL(buf)
 	return ..()
 
 /obj/item/weapon/dnainjector/proc/GetRealBlock(var/selblock)
diff --git a/code/modules/recycling/disposal.dm b/code/modules/recycling/disposal.dm
index a3f038a507a..5d02d8a93f1 100644
--- a/code/modules/recycling/disposal.dm
+++ b/code/modules/recycling/disposal.dm
@@ -500,8 +500,7 @@
 	var/hasmob = 0 //If it contains a mob
 
 	Destroy()
-		if(gas)
-			QDEL_NULL(gas)
+		QDEL_NULL(gas)
 		active = 0
 		return ..()