diff --git a/shaders/sh_shape/sh_shape.fsh b/shaders/sh_shape/sh_shape.fsh
index 354c9653a..33e6ff7c5 100644
--- a/shaders/sh_shape/sh_shape.fsh
+++ b/shaders/sh_shape/sh_shape.fsh
@@ -1,4 +1,4 @@
-#extension GL_OES_standard_derivatives : require
+//#extension GL_OES_standard_derivatives : require
 
 varying vec2 v_vTexcoord;
 varying vec4 v_vColour;