diff --git a/src/GRANULAR/fix_pour.cpp b/src/GRANULAR/fix_pour.cpp
index 2255f64eb2..e04faa783b 100644
--- a/src/GRANULAR/fix_pour.cpp
+++ b/src/GRANULAR/fix_pour.cpp
@@ -632,7 +632,13 @@ void FixPour::pre_exchange()
         int n = atom->nlocal - 1;
         atom->tag[n] = maxtag_all + m+1;
         if (mode == MOLECULE) {
-          if (atom->molecule_flag) atom->molecule[n] = maxmol_all+1;
+          if (atom->molecule_flag) {
+            if (onemols[imol]->moleculeflag) {
+              atom->molecule[n] = maxmol_all + onemols[imol]->molecule[m];
+            } else {
+              atom->molecule[n] = maxmol_all+1;
+            }
+          }
           if (atom->molecular == 2) {
             atom->molindex[n] = 0;
             atom->molatom[n] = m;