1 files changed, 4 insertions, 3 deletions
diff --git a/src/backend/taler-merchant-httpd.h b/src/backend/taler-merchant-httpd.h
index da1a6127..2e9f89fa 100644
--- a/src/backend/taler-merchant-httpd.h
+++ b/src/backend/taler-merchant-httpd.h
@@ -626,11 +626,12 @@ extern char *TMH_default_auth;
  * Callback that frees an instances removing
  * it from the global hashmap.
  *
- * @param cls closure, NULL
- * @param key current key
+ * @param cls closure, pass NULL
+ * @param key current key (ignored)
  * @param value a `struct TMH_MerchantInstance`
+ * @return #GNUNET_YES (always)
  */
-int
+enum GNUNET_GenericReturnValue
 TMH_instance_free_cb (void *cls,
                       const struct GNUNET_HashCode *key,
                       void *value);