diff --git a/include/msgbuf.h b/include/msgbuf.h
index 7de796a0..64e481cd 100644
--- a/include/msgbuf.h
+++ b/include/msgbuf.h
@@ -68,6 +68,8 @@ int msgbuf_unparse(char *buf, size_t buflen, struct MsgBuf *msgbuf, unsigned int
 int msgbuf_unparse_fmt(char *buf, size_t buflen, struct MsgBuf *head, unsigned int capmask, const char *fmt, ...) AFP(5, 6);
 int msgbuf_vunparse_fmt(char *buf, size_t buflen, struct MsgBuf *head, unsigned int capmask, const char *fmt, va_list va);
 
+void msgbuf_unparse_prefix(char *buf, size_t buflen, struct MsgBuf *msgbuf, unsigned int capmask);
+
 static inline void
 msgbuf_init(struct MsgBuf *msgbuf)
 {
diff --git a/ircd/msgbuf.c b/ircd/msgbuf.c
index ac7609a7..c0444bb2 100644
--- a/ircd/msgbuf.c
+++ b/ircd/msgbuf.c
@@ -142,7 +142,7 @@ msgbuf_unparse_tags(char *buf, size_t buflen, struct MsgBuf *msgbuf, unsigned in
 	rb_strlcat(buf, " ", buflen);
 }
 
-static void
+void
 msgbuf_unparse_prefix(char *buf, size_t buflen, struct MsgBuf *msgbuf, unsigned int capmask)
 {
 	int i;