diff --git a/src/pixi/renderers/webgl/StripShader.js b/src/pixi/renderers/webgl/StripShader.js
index e82f33a..5bf6f18 100644
--- a/src/pixi/renderers/webgl/StripShader.js
+++ b/src/pixi/renderers/webgl/StripShader.js
@@ -28,7 +28,7 @@
         'uniform mat3 translationMatrix;',
         'uniform vec2 projectionVector;',
         'varying vec2 vTextureCoord;',
-        'varying vec2 offsetVector;',
+        'uniform vec2 offsetVector;',
         'varying float vColor;',
 
         'void main(void) {',