diff --git a/flightgear b/flightgear
index ac71778..591ef4a 160000
--- a/flightgear
+++ b/flightgear
@@ -1 +1 @@
-Subproject commit ac717783197dace28bd4f9946f757fc22c26085a
+Subproject commit 591ef4ab0157f79d35486a5c7ac1e16147cda7af