diff --git a/simgear b/simgear
index e988dc0..840780d 160000
--- a/simgear
+++ b/simgear
@@ -1 +1 @@
-Subproject commit e988dc0e421744fe71b7cdc74b8ff081becfc31d
+Subproject commit 840780dc4acf8afd08f648b1e3d83c2294bb081b