-fix typo

2 files changed, 2 insertions, 2 deletions

diff --git a/src/exchange/taler-exchange-httpd_config.h b/src/exchange/taler-exchange-httpd_config.h
index 640e3b6e9..c0a14104a 100644
--- a/src/exchange/taler-exchange-httpd_config.h
+++ b/src/exchange/taler-exchange-httpd_config.h
@@ -41,7 +41,7 @@
  *
  * Returned via both /config and /keys endpoints.
  */
-#define EXCHANGE_PROTOCOL_VERSION "19:0:2"
+#define EXCHANGE_PROTOCOL_VERSION "19:1:2"
 
 
 /**
diff --git a/src/util/crypto_confirmation.c b/src/util/crypto_confirmation.c
index 5670f5560..99552f150 100644
--- a/src/util/crypto_confirmation.c
+++ b/src/util/crypto_confirmation.c
@@ -266,7 +266,7 @@ TALER_build_pos_confirmation (const char *pos_key,
             TALER_amount_is_valid (total) ) )
       {
         GNUNET_break_op (0);
-        return GNUNET_SYSERR;
+        return NULL;
       }
       TALER_amount_hton (&ntotal,
                          total);