diff --git a/tests/msc_vlr/msc_vlr_tests.h b/tests/msc_vlr/msc_vlr_tests.h
index 23dc9da..a2b2f22 100644
--- a/tests/msc_vlr/msc_vlr_tests.h
+++ b/tests/msc_vlr/msc_vlr_tests.h
@@ -184,7 +184,7 @@
 void ms_sends_msg(const char *hex);
 void ms_sends_classmark_update(const struct osmo_gsm48_classmark *classmark);
 void ms_sends_ciphering_mode_complete(const char *inner_nas_msg);
-void ms_sends_security_mode_complete();
+void ms_sends_security_mode_complete(uint8_t utran_encryption);
 void ms_sends_assignment_complete(enum mgcp_codecs assigned_codec);
 void gsup_rx(const char *rx_hex, const char *expect_tx_hex);
 void send_sms(struct vlr_subscr *receiver,