diff --git a/indra/newview/llviewershadermgr.cpp b/indra/newview/llviewershadermgr.cpp
index 299ecdfd82f17a0d1d40dd4f62ffd97e0e1d8bc9..c730b6f9706dea494a4d2d9c266b84188742b8d5 100644
--- a/indra/newview/llviewershadermgr.cpp
+++ b/indra/newview/llviewershadermgr.cpp
@@ -2181,7 +2181,7 @@ BOOL LLViewerShaderMgr::loadShadersDeferred()
 		gDeferredFullbrightShinyProgram.mFeatures.hasGamma = true;
 		gDeferredFullbrightShinyProgram.mFeatures.hasTransport = true;
 		gDeferredFullbrightShinyProgram.mFeatures.hasSrgb = true;
-		gDeferredFullbrightShinyProgram.mFeatures.mIndexedTextureChannels = LLGLSLShader::sIndexedTextureChannels-1;
+		gDeferredFullbrightShinyProgram.mFeatures.mIndexedTextureChannels = LLGLSLShader::sIndexedTextureChannels-2;
 		gDeferredFullbrightShinyProgram.mShaderFiles.clear();
 		gDeferredFullbrightShinyProgram.mShaderFiles.push_back(make_pair("deferred/fullbrightShinyV.glsl", GL_VERTEX_SHADER));
 		gDeferredFullbrightShinyProgram.mShaderFiles.push_back(make_pair("deferred/fullbrightShinyF.glsl", GL_FRAGMENT_SHADER));