diff --git a/src/kernel/item.c b/src/kernel/item.c
index 4aab13112..ba6504746 100644
--- a/src/kernel/item.c
+++ b/src/kernel/item.c
@@ -1178,12 +1178,17 @@ static item *default_spoil(const struct race *rc, int size)
     return itm;
 }
 
-int free_itype(item_type *itype) {
+static void free_itype(item_type *itype) {
     free(itype->construction);
     free(itype->_appearance[0]);
     free(itype->_appearance[1]);
     free(itype);
-    return 0;
+}
+
+static void free_wtype(weapon_type *wtype) {
+    free(wtype->damage[0]);
+    free(wtype->damage[1]);
+    free(wtype);
 }
 
 int free_rtype_cb(const void * match, const void * key, size_t keylen, void *cbdata) {
@@ -1193,6 +1198,9 @@ int free_rtype_cb(const void * match, const void * key, size_t keylen, void *cbd
     if (rtype->itype) {
         free_itype(rtype->itype);
     }
+    if (rtype->wtype) {
+        free_wtype(rtype->wtype);
+    }
     free(rtype);
     return 0;
 }
diff --git a/src/kernel/item.h b/src/kernel/item.h
index 449445a7d..fc3c2c909 100644
--- a/src/kernel/item.h
+++ b/src/kernel/item.h
@@ -211,7 +211,7 @@ extern "C" {
 
     typedef struct weapon_type {
         const item_type *itype;
-        const char *damage[2];
+        char *damage[2];
         unsigned int flags;
         skill_t skill;
         int minskill;