diff --git a/tracy/tracy/src/soleillib.cc b/tracy/tracy/src/soleillib.cc
index e7e06106f50b8faa6568d95e80cd3c8086e2f37f..cb4269dfdcd93fd4bfefc55b94e374056fb7c6e6 100644
--- a/tracy/tracy/src/soleillib.cc
+++ b/tracy/tracy/src/soleillib.cc
@@ -3293,7 +3293,7 @@ void MomentumAcceptance(long deb, long fin, double ep_min, double ep_max,
         dp2 = ep_max;  
       
       if (trace)  printf("i=%4ld pos=%4ld dp=%6.4g\n",i,pos,dp2);
-      if (1) fprintf(stdout,"pos=%4ld z0 =% 10.5f  pz0 =% 10.5f  \n", pos, tabz0[i-1L][pos-1L], tabpz0[i-1L][pos-1L]);
+      if (0) fprintf(stdout,"pos=%4ld z0 =% 10.5f  pz0 =% 10.5f  \n", pos, tabz0[i-1L][pos-1L], tabpz0[i-1L][pos-1L]);
       
       Trac(x, px, tabz0[i-1L][pos], tabpz0[i-1L][pos-1L], dp2+delta , ctau0, nturn, pos, lastn, lastpos, outf1);
     
@@ -3438,9 +3438,6 @@ void MomentumAcceptance(long deb, long fin, double ep_min, double ep_max,
     {
       i++;
       dp1 = dp2;
-      /*
-       printf("i= %d, dp1=%g, pos=%d lastn=%d\n", i, dp1,pos, lastn);
-      */
       if (nstepm != 1L) {
         dp2= em_max - (nstepm - i)*(em_max - em_min)/(nstepm - 1L);
       }