diff --git a/gpu_transform/src/main/cpp/constant/constant_shape.h b/gpu_transform/src/main/cpp/constant/constant_shape.h
index a7dcc1e..8030763 100644
--- a/gpu_transform/src/main/cpp/constant/constant_shape.h
+++ b/gpu_transform/src/main/cpp/constant/constant_shape.h
@@ -232,7 +232,7 @@ const char contrastFShaderStr[] =
 const char invertFShaderStr[] = 
         "#version 300 es\n"
         "precision highp float;\n"
-        "int vec2 v_texCoord;\n"
+        "in vec2 v_texCoord;\n"
         "\n"
         "uniform lowp sampler2D s_TextureMap;\n"
         "layout(location = 0) out vec4 outColor;\n"