1 files changed, 2 insertions, 2 deletions
diff --git a/src/fit.c b/src/fit.c
index 58873bd..4d8d389 100644
--- a/src/fit.c
+++ b/src/fit.c
@@ -5501,7 +5501,7 @@ int main(int argc, char **argv)
         case MCVX_RECORD:
             /* New MC vertex. */
             unpack_mcvx(b.data, &bmcvx);
-            if (fout) {
+            if (fout && b.status & KMCVX_CRE) {
                 if (first_mcvx) fprintf(fout, "    mcvx:\n");
                 fprintf(fout, "      -\n");
                 fprintf(fout, "        posx: %.2f\n", bmcvx.x);
@@ -5513,7 +5513,7 @@ int main(int argc, char **argv)
         case MCTK_RECORD:
             /* New MC track. */
             unpack_mctk(b.data, &bmctk);
-            if (fout) {
+            if (fout && bmctk.idp != 0) {
                 if (first_mctk) fprintf(fout, "    mctk:\n");
                 fprintf(fout, "      -\n");
                 fprintf(fout, "        id: %" PRIu32 "\n", bmctk.idp);