diff --git a/apps/openmw/mwmechanics/aipackage.cpp b/apps/openmw/mwmechanics/aipackage.cpp
index 7057a99393..24bfe41165 100644
--- a/apps/openmw/mwmechanics/aipackage.cpp
+++ b/apps/openmw/mwmechanics/aipackage.cpp
@@ -114,8 +114,6 @@ bool MWMechanics::AiPackage::pathTo(const MWWorld::Ptr& actor, const osg::Vec3f&
     const osg::Vec3f position = actor.getRefData().getPosition().asVec3(); //position of the actor
     MWBase::World* world = MWBase::Environment::get().getWorld();
 
-    const osg::Vec3f halfExtents = world->getHalfExtents(actor);
-
     /// Stops the actor when it gets too close to a unloaded cell
     //... At current time, this test is unnecessary. AI shuts down when actor is more than "actors processing range" setting value
     //... units from player, and exterior cells are 8192 units long and wide.
@@ -124,7 +122,7 @@ bool MWMechanics::AiPackage::pathTo(const MWWorld::Ptr& actor, const osg::Vec3f&
     {
         actor.getClass().getMovementSettings(actor).mPosition[0] = 0;
         actor.getClass().getMovementSettings(actor).mPosition[1] = 0;
-        world->updateActorPath(actor, mPathFinder.getPath(), halfExtents, position, dest);
+        world->updateActorPath(actor, mPathFinder.getPath(), world->getPathfindingHalfExtents(actor), position, dest);
         return false;
     }
 
@@ -180,6 +178,7 @@ bool MWMechanics::AiPackage::pathTo(const MWWorld::Ptr& actor, const osg::Vec3f&
         }
     }
 
+    const osg::Vec3f halfExtents = world->getHalfExtents(actor);
     const float pointTolerance = getPointTolerance(actor.getClass().getMaxSpeed(actor), duration, halfExtents);
 
     static const bool smoothMovement = Settings::Manager::getBool("smooth movement", "Game");
@@ -198,7 +197,7 @@ bool MWMechanics::AiPackage::pathTo(const MWWorld::Ptr& actor, const osg::Vec3f&
     else if (mPathFinder.getPath().empty())
         return false;
 
-    world->updateActorPath(actor, mPathFinder.getPath(), halfExtents, position, dest);
+    world->updateActorPath(actor, mPathFinder.getPath(), world->getPathfindingHalfExtents(actor), position, dest);
 
     if (mRotateOnTheRunChecks == 0
         || isReachableRotatingOnTheRun(actor, *mPathFinder.getPath().begin())) // to prevent circling around a path point
diff --git a/components/detournavigator/makenavmesh.cpp b/components/detournavigator/makenavmesh.cpp
index 070a227454..97c5377558 100644
--- a/components/detournavigator/makenavmesh.cpp
+++ b/components/detournavigator/makenavmesh.cpp
@@ -14,6 +14,7 @@
 #include "serialization.hpp"
 #include "dbrefgeometryobject.hpp"
 #include "navmeshdbutils.hpp"
+#include "recastparams.hpp"
 
 #include <components/misc/convert.hpp>
 #include <components/bullethelpers/processtrianglecallback.hpp>
@@ -102,7 +103,7 @@ namespace
 
     float getHeight(const RecastSettings& settings,const osg::Vec3f& agentHalfExtents)
     {
-        return 2.0f * agentHalfExtents.z() * settings.mRecastScaleFactor;
+        return getAgentHeight(agentHalfExtents) * settings.mRecastScaleFactor;
     }
 
     float getMaxClimb(const RecastSettings& settings)
@@ -112,7 +113,7 @@ namespace
 
     float getRadius(const RecastSettings& settings, const osg::Vec3f& agentHalfExtents)
     {
-        return std::max(agentHalfExtents.x(), agentHalfExtents.y()) * std::sqrt(2) * settings.mRecastScaleFactor;
+        return getAgentRadius(agentHalfExtents) * settings.mRecastScaleFactor;
     }
 
     float getSwimLevel(const RecastSettings& settings, const float waterLevel, const float agentHalfExtentsZ)
diff --git a/components/detournavigator/recastparams.hpp b/components/detournavigator/recastparams.hpp
new file mode 100644
index 0000000000..7e07d2c085
--- /dev/null
+++ b/components/detournavigator/recastparams.hpp
@@ -0,0 +1,21 @@
+#ifndef OPENMW_COMPONENTS_DETOURNAVIGATOR_RECASTPARAMS_H
+#define OPENMW_COMPONENTS_DETOURNAVIGATOR_RECASTPARAMS_H
+
+#include <osg/Vec3f>
+
+#include <cmath>
+
+namespace DetourNavigator
+{
+    inline float getAgentHeight(const osg::Vec3f& agentHalfExtents)
+    {
+        return 2.0f * agentHalfExtents.z();
+    }
+
+    inline float getAgentRadius(const osg::Vec3f& agentHalfExtents)
+    {
+        return std::max(agentHalfExtents.x(), agentHalfExtents.y()) * std::sqrt(2);
+    }
+}
+
+#endif
diff --git a/components/sceneutil/agentpath.cpp b/components/sceneutil/agentpath.cpp
index db026a3332..8d90475a82 100644
--- a/components/sceneutil/agentpath.cpp
+++ b/components/sceneutil/agentpath.cpp
@@ -4,6 +4,7 @@
 #include <osg/Material>
 
 #include <components/detournavigator/settings.hpp>
+#include <components/detournavigator/recastparams.hpp>
 
 #include <algorithm>
 
@@ -45,8 +46,8 @@ namespace SceneUtil
 
         DebugDraw debugDraw(*group, DebugDraw::makeStateSet(), osg::Vec3f(0, 0, 0), 1);
 
-        const auto agentRadius = halfExtents.x();
-        const auto agentHeight = 2.0f * halfExtents.z();
+        const auto agentRadius = DetourNavigator::getAgentRadius(halfExtents);
+        const auto agentHeight = DetourNavigator::getAgentHeight(halfExtents);
         const auto agentClimb = settings.mMaxClimb;
         const auto startColor = duRGBA(128, 25, 0, 192);
         const auto endColor = duRGBA(51, 102, 0, 129);