diff --git a/discoal.h b/discoal.h
index 0b1daa0..a113b67 100644
--- a/discoal.h
+++ b/discoal.h
@@ -116,7 +116,7 @@ double recurSweepRate;
 
 int EFFECTIVE_POPN_SIZE;
 
-#define TRAJSTEPSTART 5000000000
+#define TRAJSTEPSTART 500000000
 long int  maxTrajSteps;
 float *currentTrajectory;
 long int currentTrajectoryStep, totalTrajectorySteps;