diff --git a/src/event_object_movement.c b/src/event_object_movement.c
index 5281a692c..a90a13858 100644
--- a/src/event_object_movement.c
+++ b/src/event_object_movement.c
@@ -2246,7 +2246,7 @@ u8 SpawnSpecialObjectEvent(struct ObjectEventTemplate *objectEventTemplate)
     return TrySpawnObjectEventTemplate(objectEventTemplate, gSaveBlock1Ptr->location.mapNum, gSaveBlock1Ptr->location.mapGroup, cameraX, cameraY);
 }
 
-u8 SpawnSpecialObjectEventParameterized(u16 graphicsId, u8 movementBehavior, u8 localId, s16 x, s16 y, u8 z)
+u8 SpawnSpecialObjectEventParameterized(u16 graphicsId, u8 movementBehavior, u8 localId, s16 x, s16 y, u8 elevation)
 {
     struct ObjectEventTemplate objectEventTemplate;
 
@@ -2257,7 +2257,7 @@ u8 SpawnSpecialObjectEventParameterized(u16 graphicsId, u8 movementBehavior, u8
     objectEventTemplate.inConnection = 0;
     objectEventTemplate.x = x;
     objectEventTemplate.y = y;
-    objectEventTemplate.elevation = z;
+    objectEventTemplate.elevation = elevation;
     objectEventTemplate.movementType = movementBehavior;
     objectEventTemplate.movementRangeX = 0;
     objectEventTemplate.movementRangeY = 0;
@@ -2336,7 +2336,7 @@ u8 CreateObjectGraphicsSprite(u16 graphicsId, void (*callback)(struct Sprite *),
 // A unique id is given as an argument and stored in the sprite data to allow referring back to the same virtual object.
 // They can be turned (and, in the case of the Union Room, animated teleporting in and out) but do not have movement types
 // or any of the other data normally associated with object events.
-u8 CreateVirtualObject(u16 graphicsId, u8 virtualObjId, s16 x, s16 y, u8 z, u8 direction)
+u8 CreateVirtualObject(u16 graphicsId, u8 virtualObjId, s16 x, s16 y, u8 elevation, u8 direction)
 {
     u8 spriteId;
     struct Sprite *sprite;
@@ -2363,7 +2363,7 @@ u8 CreateVirtualObject(u16 graphicsId, u8 virtualObjId, s16 x, s16 y, u8 z, u8 d
 
         sprite->coordOffsetEnabled = TRUE;
         sprite->sVirtualObjId = virtualObjId;
-        sprite->sVirtualObjElev = z;
+        sprite->sVirtualObjElev = elevation;
         if (graphicsInfo->paletteSlot == 10)
             LoadSpecialObjectReflectionPalette(graphicsInfo->paletteTag, graphicsInfo->paletteSlot);
         else if (graphicsInfo->paletteSlot >= 16)
@@ -2374,8 +2374,8 @@ u8 CreateVirtualObject(u16 graphicsId, u8 virtualObjId, s16 x, s16 y, u8 z, u8 d
             SetSubspriteTables(sprite, subspriteTables);
             sprite->subspriteMode = SUBSPRITES_IGNORE_PRIORITY;
         }
-        InitObjectPriorityByElevation(sprite, z);
-        SetObjectSubpriorityByElevation(z, sprite, 1);
+        InitObjectPriorityByElevation(sprite, elevation);
+        SetObjectSubpriorityByElevation(elevation, sprite, 1);
         StartSpriteAnim(sprite, GetFaceDirectionAnimNum(direction));
     }
     return spriteId;