diff --git a/src/renderers/webgl/WebGLShadowMap.js b/src/renderers/webgl/WebGLShadowMap.js
index e208280dfaf7fb..19d21099d8f5af 100644
--- a/src/renderers/webgl/WebGLShadowMap.js
+++ b/src/renderers/webgl/WebGLShadowMap.js
@@ -247,7 +247,7 @@ function WebGLShadowMap( _renderer, _objects, _capabilities ) {
 
 		}
 
-		if ( ( _renderer.localClippingEnabled && material.clipShadows === true && material.clippingPlanes.length !== 0 ) ||
+		if ( ( _renderer.localClippingEnabled && material.clipShadows === true && material.clippingPlanes && material.clippingPlanes.length !== 0 ) ||
 			( material.displacementMap && material.displacementScale !== 0 ) ||
 			( material.alphaMap && material.alphaTest > 0 ) ) {