diff --git a/code/modules/atmospherics/machinery/components/binary_devices/pump.dm b/code/modules/atmospherics/machinery/components/binary_devices/pump.dm
index 9303dee01d9..63cc657dfb6 100644
--- a/code/modules/atmospherics/machinery/components/binary_devices/pump.dm
+++ b/code/modules/atmospherics/machinery/components/binary_devices/pump.dm
@@ -44,7 +44,6 @@ Thus, the two variables affect pump operation are set in New():
 /obj/machinery/atmospherics/binary/pump/AltClick(mob/living/user)
 	if(can_use_shortcut(user))
 		set_max(user)
-	return
 
 /obj/machinery/atmospherics/binary/pump/AIAltClick()
 	set_max()
diff --git a/code/modules/atmospherics/machinery/components/binary_devices/volume_pump.dm b/code/modules/atmospherics/machinery/components/binary_devices/volume_pump.dm
index 21225229738..641b492f009 100644
--- a/code/modules/atmospherics/machinery/components/binary_devices/volume_pump.dm
+++ b/code/modules/atmospherics/machinery/components/binary_devices/volume_pump.dm
@@ -41,7 +41,6 @@ Thus, the two variables affect pump operation are set in New():
 /obj/machinery/atmospherics/binary/volume_pump/AltClick(mob/living/user)
 	if(can_use_shortcut(user))
 		set_max(user)
-	return
 
 /obj/machinery/atmospherics/binary/volume_pump/AIAltClick()
 	set_max()
diff --git a/code/modules/atmospherics/machinery/components/trinary_devices/filter.dm b/code/modules/atmospherics/machinery/components/trinary_devices/filter.dm
index 2043220ef77..14b802ec19c 100644
--- a/code/modules/atmospherics/machinery/components/trinary_devices/filter.dm
+++ b/code/modules/atmospherics/machinery/components/trinary_devices/filter.dm
@@ -47,7 +47,6 @@
 /obj/machinery/atmospherics/trinary/filter/AltClick(mob/living/user)
 	if(can_use_shortcut(user))
 		set_max(user)
-	return
 
 /obj/machinery/atmospherics/trinary/filter/AIAltClick()
 	set_max()
diff --git a/code/modules/atmospherics/machinery/components/trinary_devices/mixer.dm b/code/modules/atmospherics/machinery/components/trinary_devices/mixer.dm
index 39c7c73aba1..3e42cf411cd 100644
--- a/code/modules/atmospherics/machinery/components/trinary_devices/mixer.dm
+++ b/code/modules/atmospherics/machinery/components/trinary_devices/mixer.dm
@@ -28,7 +28,6 @@
 /obj/machinery/atmospherics/trinary/mixer/AltClick(mob/living/user)
 	if(can_use_shortcut(user))
 		set_max(user)
-	return ..()
 
 /obj/machinery/atmospherics/trinary/mixer/AIAltClick()
 	set_max()