diff --git a/src/input/ipaccess.c b/src/input/ipaccess.c
index 602aded..b7391b3 100644
--- a/src/input/ipaccess.c
+++ b/src/input/ipaccess.c
@@ -187,24 +187,24 @@
 }
 
 /* base handling of the ip.access protocol */
-static bool ipaccess_rcvmsg_base(struct msgb *msg, struct osmo_fd *bfd)
+int ipaccess_rcvmsg_base(struct msgb *msg, struct osmo_fd *bfd)
 {
-	bool ipa_ccm = false;
+	int ipa_ccm = 0;
 	uint8_t msg_type = *(msg->l2h);
 	int ret = 0;
 
 	switch (msg_type) {
 	case IPAC_MSGT_PING:
-		ipa_ccm = true;
+		ipa_ccm = 1;
 		ret = ipaccess_send_pong(bfd->fd);
 		break;
 	case IPAC_MSGT_PONG:
 		DEBUGP(DLMI, "PONG!\n");
-		ipa_ccm = true;
+		ipa_ccm = 1;
 		break;
 	case IPAC_MSGT_ID_ACK:
 		DEBUGP(DLMI, "ID_ACK? -> ACK!\n");
-		ipa_ccm = true;
+		ipa_ccm = 1;
 		ret = ipaccess_send_id_ack(bfd->fd);
 		break;
 	}