diff --git a/src/gl/renderer/gl_renderstate.cpp b/src/gl/renderer/gl_renderstate.cpp
index 2d02742f6..a24210678 100644
--- a/src/gl/renderer/gl_renderstate.cpp
+++ b/src/gl/renderer/gl_renderstate.cpp
@@ -69,7 +69,6 @@ void FRenderState::Reset()
 	currentColorMask[0] = currentColorMask[1] = currentColorMask[2] = currentColorMask[3] = true;
 	mFogColor.d = -1;
 	mTextureMode = -1;
-	mLightIndex = -1;
 	mDesaturation = 0;
 	mSrcBlend = GL_SRC_ALPHA;
 	mDstBlend = GL_ONE_MINUS_SRC_ALPHA;
@@ -176,7 +175,7 @@ bool FRenderState::ApplyShader()
 	activeShader->muClipHeightDirection.Set(mClipHeightDirection);
 	activeShader->muTimer.Set((double)(screen->FrameTime - firstFrame) * (double)mShaderTimer / 1000.);
 	activeShader->muAlphaThreshold.Set(mAlphaThreshold);
-	activeShader->muLightIndex.Set(mLightIndex);	// will always be -1 for now
+	activeShader->muLightIndex.Set(-1);
 	activeShader->muClipSplit.Set(mClipSplit);
 	activeShader->muViewHeight.Set(viewheight);
 	activeShader->muSpecularMaterial.Set(mGlossiness, mSpecularLevel);
diff --git a/src/gl/renderer/gl_renderstate.h b/src/gl/renderer/gl_renderstate.h
index 54590e9de..8c69ff4c7 100644
--- a/src/gl/renderer/gl_renderstate.h
+++ b/src/gl/renderer/gl_renderstate.h
@@ -82,7 +82,6 @@ class FRenderState
 	bool mBrightmapEnabled;
 	bool mColorMask[4];
 	bool currentColorMask[4];
-	int mLightIndex;
 	int mSpecialEffect;
 	int mTextureMode;
 	int mDesaturation;
@@ -327,11 +326,6 @@ public:
 		}
 	}
 
-	void SetLightIndex(int n)
-	{
-		mLightIndex = n;
-	}
-
 	void EnableBrightmap(bool on)
 	{
 		mBrightmapEnabled = on;