diff --git a/src/game/behaviors/haunted_chair.inc.c b/src/game/behaviors/haunted_chair.inc.c
index e1779ad7..c5c3fe34 100644
--- a/src/game/behaviors/haunted_chair.inc.c
+++ b/src/game/behaviors/haunted_chair.inc.c
@@ -27,7 +27,6 @@ void bhv_haunted_chair_init(void) {
     network_init_object_field(o, &o->oFaceAnglePitch);
     network_init_object_field(o, &o->oFaceAngleRoll);
     network_init_object_field(o, &o->oFaceAngleYaw);
-    network_init_object_field(o, &o->oHauntedChairUnk100);
     network_init_object_field(o, &o->oHauntedChairUnk104);
     network_init_object_field(o, &o->oHauntedChairUnkF4);
     network_init_object_field(o, &o->oHauntedChairUnkF8);
diff --git a/src/game/obj_behaviors_2.c b/src/game/obj_behaviors_2.c
index 82c000a7..bed2e7a8 100644
--- a/src/game/obj_behaviors_2.c
+++ b/src/game/obj_behaviors_2.c
@@ -511,6 +511,7 @@ static s32 obj_grow_then_shrink(f32 *scaleVel, f32 shootFireScale, f32 endScale)
 
 static s32 oscillate_toward(s32 *value, f32 *vel, s32 target, f32 velCloseToZero, f32 accel,
                             f32 slowdown) {
+    if (value == NULL || vel == NULL) { return FALSE; }
     s32 startValue = *value;
     *value += (s32) *vel;