diff --git a/engine/server/sv_main.c b/engine/server/sv_main.c
index a621c219..c16d119f 100644
--- a/engine/server/sv_main.c
+++ b/engine/server/sv_main.c
@@ -189,6 +189,9 @@ void SV_UpdateMovevars( qboolean initialize )
 	if( !initialize && !host.movevars_changed )
 		return;
 
+	// NOTE: this breaks Natural Selection mod on ns_machina map that uses model as sky
+	// it sets the value to 4000000 that even exceeds the coord limit
+#if 0
 	// check range
 	if( sv_zmax.value < 256.0f ) Cvar_SetValue( "sv_zmax", 256.0f );
 
@@ -203,6 +206,7 @@ void SV_UpdateMovevars( qboolean initialize )
 		if( sv_zmax.value > 32767.0f )
 			Cvar_SetValue( "sv_zmax", 32767.0f );
 	}
+#endif
 
 	svgame.movevars.gravity = sv_gravity.value;
 	svgame.movevars.stopspeed = sv_stopspeed.value;