diff --git a/src/Controls/controls.cxx b/src/Controls/controls.cxx
index 14685770a..100bb8dbb 100644
--- a/src/Controls/controls.cxx
+++ b/src/Controls/controls.cxx
@@ -100,6 +100,7 @@ FGControls::init ()
         brake[wheel] = 0.0;
     }
 
+    parking_brake = 0.0;
     auto_coordination = fgGetNode("/sim/auto-coordination", true);
 }