diff --git a/components/resource/bulletshape.cpp b/components/resource/bulletshape.cpp
index 1d4be1d14d..52d639d272 100644
--- a/components/resource/bulletshape.cpp
+++ b/components/resource/bulletshape.cpp
@@ -84,11 +84,6 @@ void BulletShape::setLocalScaling(const btVector3& scale)
         mAvoidCollisionShape->setLocalScaling(scale);
 }
 
-bool BulletShape::isAnimated() const
-{
-    return !mAnimatedShapes.empty();
-}
-
 osg::ref_ptr<BulletShapeInstance> makeInstance(osg::ref_ptr<const BulletShape> source)
 {
     return {new BulletShapeInstance(std::move(source))};
diff --git a/components/resource/bulletshape.hpp b/components/resource/bulletshape.hpp
index 1065f3893b..7188165045 100644
--- a/components/resource/bulletshape.hpp
+++ b/components/resource/bulletshape.hpp
@@ -49,7 +49,7 @@ namespace Resource
 
         void setLocalScaling(const btVector3& scale);
 
-        bool isAnimated() const;
+        bool isAnimated() const { return !mAnimatedShapes.empty(); }
     };