diff --git a/indra/newview/app_settings/shaders/class1/environment/moonV.glsl b/indra/newview/app_settings/shaders/class1/environment/moonV.glsl
index 75ad251fac..c00f202c23 100644
--- a/indra/newview/app_settings/shaders/class1/environment/moonV.glsl
+++ b/indra/newview/app_settings/shaders/class1/environment/moonV.glsl
@@ -26,6 +26,7 @@
 uniform mat4 modelview_projection_matrix;
 
 ATTRIBUTE vec3 position;
+ATTRIBUTE vec2 texcoord0;
 
 VARYING vec2 vary_texcoord0;