diff --git a/src/FDM/JSBSim/FGAtmosphere.cpp b/src/FDM/JSBSim/FGAtmosphere.cpp
index e53df6a81..6eb0aa157 100644
--- a/src/FDM/JSBSim/FGAtmosphere.cpp
+++ b/src/FDM/JSBSim/FGAtmosphere.cpp
@@ -267,8 +267,7 @@ void FGAtmosphere::Turbulence(void)
     vDirectiondAccelDt(eY) = 1 - 2.0*(double(rand())/double(RAND_MAX));
     vDirectiondAccelDt(eZ) = 1 - 2.0*(double(rand())/double(RAND_MAX));
 
-    
-    MagnitudedAccelDt = 1 - 2.0*(double(rand())/double(RAND_MAX)) - Magnitude;
+    MagnitudedAccelDt = 1 - 2.0*(double(rand())/double(RAND_MAX));
     MagnitudeAccel    += MagnitudedAccelDt*rate*State->Getdt();
     Magnitude         += MagnitudeAccel*rate*State->Getdt();