diff --git a/src/game/server/SkyCamera.cpp b/src/game/server/SkyCamera.cpp
index 939a30e9..126e7862 100644
--- a/src/game/server/SkyCamera.cpp
+++ b/src/game/server/SkyCamera.cpp
@@ -17,6 +17,8 @@ CEntityClassList<CSkyCamera> g_SkyList;
 template <> CSkyCamera *CEntityClassList<CSkyCamera>::m_pClassList = NULL;
 #ifdef MAPBASE
 CHandle<CSkyCamera> g_hActiveSkybox = NULL;
+
+extern ConVar r_radialfog_default;
 #endif
 
 //-----------------------------------------------------------------------------
@@ -141,9 +143,11 @@ CSkyCamera::CSkyCamera()
 {
 	g_SkyList.Insert( this );
 	m_skyboxData.fog.maxdensity = 1.0f;
-	m_skyboxData.fog.radial = false;
 #ifdef MAPBASE
 	m_skyboxData.skycolor.Init(0, 0, 0, 0);
+	m_skyboxData.fog.radial = r_radialfog_default.GetBool();
+#else
+	m_skyboxData.fog.radial = false;
 #endif
 }
 
diff --git a/src/game/server/fogcontroller.cpp b/src/game/server/fogcontroller.cpp
index 74b332b2..8a4ac338 100644
--- a/src/game/server/fogcontroller.cpp
+++ b/src/game/server/fogcontroller.cpp
@@ -18,6 +18,10 @@
 
 CFogSystem s_FogSystem( "FogSystem" );
 
+#ifdef MAPBASE
+ConVar r_radialfog_default( "r_radialfog_default", "1", FCVAR_NONE, "Toggles whether radial fog is the default for env_fog_controller." );
+#endif
+
 //-----------------------------------------------------------------------------
 // Purpose:
 //-----------------------------------------------------------------------------
@@ -101,6 +105,9 @@ CFogController::CFogController()
 	// Make sure that old maps without fog fields don't get wacked out fog values.
 	m_fog.enable = false;
 	m_fog.maxdensity = 1.0f;
+#ifdef MAPBASE
+	m_fog.radial = r_radialfog_default.GetBool();
+#endif
 }