diff --git a/src/creport.c b/src/creport.c
index eeaa563bb..91d56ca3b 100644
--- a/src/creport.c
+++ b/src/creport.c
@@ -1529,6 +1529,7 @@ static void report_itemtype(FILE *F, faction *f, const item_type *itype) {
             fprintf(F, "\"%s\"\n", translate(ch, LOC(f->locale, ch)));
             m++;
         }
+        assert(!m->rtype);
     }
 }
     
diff --git a/src/economy.c b/src/economy.c
index 5fbb0111c..3bb7b1066 100644
--- a/src/economy.c
+++ b/src/economy.c
@@ -1252,7 +1252,6 @@ static void create_potion(unit * u, const item_type * itype, int want)
         /* something missing from the list of materials */
         ADDMSG(&u->faction->msgs, msg_materials_required(u, u->thisorder,
             itype->construction, want));
-        return;
         break;
     default:
         i_change(&u->items, itype, built);
diff --git a/src/exparse.c b/src/exparse.c
index 07acb090e..9f49459a9 100644
--- a/src/exparse.c
+++ b/src/exparse.c
@@ -625,6 +625,7 @@ static void handle_requirement(parseinfo *pi, const XML_Char *el, const XML_Char
 
     assert(nreqs < MAX_REQUIREMENTS);
     req = reqs + nreqs;
+    req->number = 1;
     for (i = 0; attr[i]; i += 2) {
         if (xml_strcmp(attr[i], "type") == 0) {
             req->rtype = rt_get_or_create(attr[i + 1]);
diff --git a/src/report.c b/src/report.c
index 2a0e9eb3a..407c0c767 100644
--- a/src/report.c
+++ b/src/report.c
@@ -2212,6 +2212,7 @@ report_plaintext(const char *filename, report_context * ctx,
                     if (wrptr(&bufp, &size, bytes) != 0)
                         WARN_STATIC_BUFFER();
                 }
+                assert(!rm->rtype);
             }
             *bufp = 0;
             centre(out, buf, true);