diff --git a/leenkx/blender/lnx/material/make_cluster.py b/leenkx/blender/lnx/material/make_cluster.py
index 7e21c93..ed3ac3e 100644
--- a/leenkx/blender/lnx/material/make_cluster.py
+++ b/leenkx/blender/lnx/material/make_cluster.py
@@ -102,9 +102,10 @@ def write(vert: shader.Shader, frag: shader.Shader):
     if '_MicroShadowing' in wrd.world_defs and not is_mobile:
         frag.write('\t, occlusion')
     if '_SSRS' in wrd.world_defs:
+        frag.add_uniform('sampler2D gbufferD', top=True)
         frag.add_uniform('mat4 invVP', '_inverseViewProjectionMatrix')
         frag.add_uniform('vec3 eye', '_cameraPosition')
-        frag.write(', wposition.z, inVP, eye')
+        frag.write(', wposition.z, invVP, eye')
     frag.write(');')
 
     frag.write('}') # for numLights