diff --git a/apps/openmw/mwphysics/actor.cpp b/apps/openmw/mwphysics/actor.cpp
index 06abe724037..905034cde5a 100644
--- a/apps/openmw/mwphysics/actor.cpp
+++ b/apps/openmw/mwphysics/actor.cpp
@@ -22,6 +22,7 @@ namespace MWPhysics
 Actor::Actor(const MWWorld::Ptr& ptr, const Resource::BulletShape* shape, PhysicsTaskScheduler* scheduler)
   : mStandingOnPtr(nullptr), mCanWaterWalk(false), mWalkingOnWater(false)
   , mCollisionObject(nullptr), mMeshTranslation(shape->mCollisionBox.center), mHalfExtents(shape->mCollisionBox.extents)
+  , mStuckFrames(0), mLastStuckPosition{0, 0, 0}
   , mForce(0.f, 0.f, 0.f), mOnGround(true), mOnSlope(false)
   , mInternalCollisionMode(true)
   , mExternalCollisionMode(true)