diff --git a/src/gl/renderer/gl_renderstate.cpp b/src/gl/renderer/gl_renderstate.cpp
index cf86049247..64647b6700 100644
--- a/src/gl/renderer/gl_renderstate.cpp
+++ b/src/gl/renderer/gl_renderstate.cpp
@@ -141,7 +141,7 @@ bool FRenderState::ApplyShader()
 	activeShader->muLightParms.Set(mLightParms);
 	activeShader->muFogColor.Set(mFogColor);
 	activeShader->muObjectColor.Set(mObjectColor);
-	activeShader->muDynLightColor.Set(mDynColor);
+	activeShader->muDynLightColor.Set(mDynColor.vec);
 	activeShader->muInterpolationFactor.Set(mInterpolationFactor);
 
 	if (mGlowEnabled)
diff --git a/src/gl/renderer/gl_renderstate.h b/src/gl/renderer/gl_renderstate.h
index 1bfaf71357..f569c3eab5 100644
--- a/src/gl/renderer/gl_renderstate.h
+++ b/src/gl/renderer/gl_renderstate.h
@@ -65,7 +65,7 @@ class FRenderState
 	FStateVec4 mGlowTopPlane, mGlowBottomPlane;
 	PalEntry mFogColor;
 	PalEntry mObjectColor;
-	PalEntry mDynColor;
+	FStateVec4 mDynColor;
 
 	int mEffectState;
 	int mColormapState;
@@ -184,12 +184,7 @@ public:
 
 	void SetDynLight(float r, float g, float b)
 	{
-		mDynColor = PalEntry(255, xs_CRoundToInt(r*255), xs_CRoundToInt(g*255), xs_CRoundToInt(b*255));
-	}
-
-	void SetDynLight(PalEntry pe)
-	{
-		mDynColor = pe;
+		mDynColor.Set(r, g, b, 0);
 	}
 
 	void SetObjectColor(PalEntry pe)
diff --git a/src/gl/shaders/gl_shader.h b/src/gl/shaders/gl_shader.h
index b079e74c46..833f97fbb3 100644
--- a/src/gl/shaders/gl_shader.h
+++ b/src/gl/shaders/gl_shader.h
@@ -186,7 +186,7 @@ class FShader
 	FUniform4f muColormapRange;
 	FBufferedUniform4i muLightRange;
 	FBufferedUniformPE muFogColor;
-	FBufferedUniformPE muDynLightColor;
+	FBufferedUniform4f muDynLightColor;
 	FBufferedUniformPE muObjectColor;
 	FUniform4f muGlowBottomColor;
 	FUniform4f muGlowTopColor;