diff --git a/neo/renderer/RenderWorld_lightgrid.cpp b/neo/renderer/RenderWorld_lightgrid.cpp
index a69a0b90..7187d501 100644
--- a/neo/renderer/RenderWorld_lightgrid.cpp
+++ b/neo/renderer/RenderWorld_lightgrid.cpp
@@ -605,7 +605,7 @@ bool idRenderWorldLocal::LoadLightGridFile( const char* name )
 			lightGridVersion = atoi( token );
 		}
 
-		if( lightGridVersion != LGRID_VERSION )
+		if( lightGridVersion != LGRID_VERSION && lightGridVersion != 4 )
 		{
 			common->Warning( "%s has version %i instead of %i", fileName.c_str(), lightGridVersion, LGRID_VERSION );
 			delete src;