diff --git a/src/BayesWavePrior.c b/src/BayesWavePrior.c
index bdfc1480d4affad21a6b16191549419ed20c8b50..b44d76f019305fec25d9fea5e6256fdbb55c4e05 100644
--- a/src/BayesWavePrior.c
+++ b/src/BayesWavePrior.c
@@ -59,7 +59,7 @@ void set_bayesline_priors(char *channel, struct BayesLineParams *bayesline, doub
   //Use O1 strain as default
   else
   {
-    bayesline->priors->SAmin = 5.0e-48*Tobs/4.0;
+    bayesline->priors->SAmin = 1.0e-51*Tobs/4.0;
     bayesline->priors->SAmax = 5.0e-36*Tobs/4.0;
     bayesline->priors->LQmin = 1.0e1;
     bayesline->priors->LQmax = 1.0e7;