diff --git a/korman/exporter/material.py b/korman/exporter/material.py
index 0fb5778..5744215 100644
--- a/korman/exporter/material.py
+++ b/korman/exporter/material.py
@@ -367,7 +367,7 @@ class MaterialConverter:
                 state.blendFlags |= hsGMatState.kBlendMult
 
         # Check if this layer uses diffuse/runtime lighting
-        if (bm is not None and slot.use_map_color_diffuse) or slot.use_map_color:
+        if bm is not None and slot.use_map_color_diffuse:
             layer.preshade = hsColorRGBA(0.0, 0.0, 0.0, 1.0)
             layer.runtime = hsColorRGBA(0.0, 0.0, 0.0, 1.0)