diff --git a/wadsrc/static/shaders/scene/lightmodel_pbr.glsl b/wadsrc/static/shaders/scene/lightmodel_pbr.glsl
index ac882eb2b..e308bd7ab 100644
--- a/wadsrc/static/shaders/scene/lightmodel_pbr.glsl
+++ b/wadsrc/static/shaders/scene/lightmodel_pbr.glsl
@@ -176,7 +176,7 @@ vec3 ProcessMaterialLight(Material material, vec3 ambientLight, float sunlightAt
 
 	vec3 irradiance, prefilteredColor;
 
-	if (vLightmapIndex != -1)
+	if (vLightmapIndex != -1 && uLightProbeIndex == 0)
 	{
 		uvec4 probeIndexes = textureGather(uintTextures[nonuniformEXT(vLightmapIndex + 1)], vLightmap.xy);