diff --git a/render/gles2/shaders/quad.frag b/render/gles2/shaders/quad.frag
index 97d3a31c1..d48aefdbe 100644
--- a/render/gles2/shaders/quad.frag
+++ b/render/gles2/shaders/quad.frag
@@ -4,7 +4,6 @@ precision highp float;
 precision mediump float;
 #endif
 
-varying vec4 v_color;
 varying vec2 v_texcoord;
 uniform vec4 color;