diff --git a/include/osmocom/abis/ipa.h b/include/osmocom/abis/ipa.h
index 4758d57..bc34ca3 100644
--- a/include/osmocom/abis/ipa.h
+++ b/include/osmocom/abis/ipa.h
@@ -87,5 +87,6 @@
 void ipaccess_prepend_header(struct msgb *msg, int proto);
 void ipaccess_prepend_header_ext(struct msgb *msg, int proto);
 
+void ipa_msg_push_header(struct msgb *msg, uint8_t proto);
 
 #endif