1 files changed, 7 insertions, 1 deletions
diff --git a/indra/newview/app_settings/shaders/class1/interface/occlusionF.glsl b/indra/newview/app_settings/shaders/class1/interface/occlusionF.glsl
index 57248699cb..db130e456c 100644
--- a/indra/newview/app_settings/shaders/class1/interface/occlusionF.glsl
+++ b/indra/newview/app_settings/shaders/class1/interface/occlusionF.glsl
@@ -23,7 +23,13 @@
  * $/LicenseInfo$
  */
  
+#ifdef DEFINE_GL_FRAGCOLOR
+out vec4 frag_color;
+#else
+#define frag_color gl_FragColor
+#endif
+
 void main() 
 {
-	gl_FragColor = vec4(1,1,1,1);
+	frag_color = vec4(1,1,1,1);
 }