diff --git a/src/AIModel/AIMultiplayer.cxx b/src/AIModel/AIMultiplayer.cxx
index d9b44305a..ab9cc5c3c 100755
--- a/src/AIModel/AIMultiplayer.cxx
+++ b/src/AIModel/AIMultiplayer.cxx
@@ -29,6 +29,8 @@
 
 #include "AIMultiplayer.hxx"
 
+#include <simgear/scene/util/SGNodeMasks.hxx>
+
 // #define SG_DEBUG SG_ALERT
 
 FGAIMultiplayer::FGAIMultiplayer() : FGAIBase(otMultiplayer) {
@@ -37,6 +39,9 @@ FGAIMultiplayer::FGAIMultiplayer() : FGAIBase(otMultiplayer) {
    mTimeOffsetSet = false;
    mAllowExtrapolation = true;
    mLagAdjustSystemSpeed = 10;
+
+   aip.getSceneGraph()->setNodeMask(~SG_NODEMASK_TERRAIN_BIT);
+
 }