diff --git a/app/node/blend/alphaover/alphaover.cpp b/app/node/blend/alphaover/alphaover.cpp
index 0bd2f5592..17a10e11e 100644
--- a/app/node/blend/alphaover/alphaover.cpp
+++ b/app/node/blend/alphaover/alphaover.cpp
@@ -45,19 +45,26 @@ QString AlphaOverBlend::Description() const
   return tr("A blending node that composites one texture over another using its alpha channel.");
 }
 
-QString AlphaOverBlend::Code() const
+bool AlphaOverBlend::IsAccelerated() const
+{
+  return true;
+}
+
+QString AlphaOverBlend::CodeFragment() const
 {
   return "#version 110"
          "\n"
-         "varying vec2 v_texcoord;\n"
+         "varying vec2 ove_texcoord;\n"
          "\n"
          "uniform sampler2D base_in;\n"
          "uniform sampler2D blend_in;\n"
          "\n"
          "void main(void) {\n"
-         "  vec4 base_col = texture2D(base_in, v_texcoord);\n"
-         "  vec4 blend_col = texture2D(blend_in, v_texcoord);\n"
+         "  vec4 base_col = texture2D(base_in, ove_texcoord);\n"
+         "  vec4 blend_col = texture2D(blend_in, ove_texcoord);\n"
+         "  base_col *= 1.0 - blend_col.a;\n"
+         "  base_col += blend_col;\n"
          "  \n"
-         "  gl_FragColor = base_col - blend_col.a + blend_col;\n"
+         "  gl_FragColor = base_col;\n"
          "}\n";
 }