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-rw-r--r--src/exchange-lib/testing_api_cmd_serialize_keys.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/exchange-lib/testing_api_cmd_serialize_keys.c b/src/exchange-lib/testing_api_cmd_serialize_keys.c
index 97f214253..c63147a7e 100644
--- a/src/exchange-lib/testing_api_cmd_serialize_keys.c
+++ b/src/exchange-lib/testing_api_cmd_serialize_keys.c
@@ -68,6 +68,7 @@ serialize_keys_run (void *cls,
sks->exchange_url = TALER_EXCHANGE_get_base_url (is->exchange);
TALER_EXCHANGE_disconnect (is->exchange);
+ is->exchange = NULL;
TALER_TESTING_interpreter_next (is);
}