diff --git a/intern/opencolorio/ocio_impl_glsl.cc b/intern/opencolorio/ocio_impl_glsl.cc
index 3dbf7c9f7cb..9503b272752 100644
--- a/intern/opencolorio/ocio_impl_glsl.cc
+++ b/intern/opencolorio/ocio_impl_glsl.cc
@@ -92,14 +92,12 @@ static const char *g_fragShaderText = ""
 "void main()\n"
 "{\n"
 "    vec4 col = texture2D(tex1, gl_TexCoord[0].st);\n"
-"    float inv_alpha = 1.0;"
 "    if (predivide == false || col[3] <= 0.0 || col[3] >= 1.0) {\n"
 "        float inv_alpha = 1.0 / col[3];\n"
+"        col[0] *= inv_alpha;\n"
+"        col[1] *= inv_alpha;\n"
+"        col[2] *= inv_alpha;\n"
 "}\n"
-"    col[0] *= inv_alpha;\n"
-"    col[1] *= inv_alpha;\n"
-"    col[2] *= inv_alpha;\n"
-"\n"
 "    gl_FragColor = OCIODisplay(col, tex2);\n"
 "\n"
 "}\n";