diff --git a/src/pixi/renderers/webgl/PixiShader.js b/src/pixi/renderers/webgl/PixiShader.js
index c17bae1..2cce59c 100644
--- a/src/pixi/renderers/webgl/PixiShader.js
+++ b/src/pixi/renderers/webgl/PixiShader.js
@@ -197,7 +197,7 @@
         }
         else if (type == "sampler2D")
         {
-            if (this.uniforms[key].value.baseTexture.hasLoaded)
+            if (this.uniforms[key].value && this.uniforms[key].value.baseTexture.hasLoaded)
             {
                 var texture = this.uniforms[key].value.baseTexture._glTexture;
                 var image = this.uniforms[key].value.baseTexture.source;