diff --git a/goal_src/jak2/levels/forest/pegasus.gc b/goal_src/jak2/levels/forest/pegasus.gc
index e5a831c024..c14282a25b 100644
--- a/goal_src/jak2/levels/forest/pegasus.gc
+++ b/goal_src/jak2/levels/forest/pegasus.gc
@@ -1238,6 +1238,7 @@ The faster it's moving the fast it flaps it's wings, etc
 
 (defmethod init-enemy-collision! pegasus ((obj pegasus))
   "Initializes the [[collide-shape-moving]] and any ancillary tasks to make the enemy collide properly"
+  (stack-size-set! (-> obj main-thread) 512) ;; added
   (let ((cshape (new 'process 'collide-shape-moving obj (collide-list-enum usually-hit-by-player))))
     (set! (-> cshape dynam) (copy *standard-dynamics* 'process))
     (set! (-> cshape reaction) cshape-reaction-default)