diff --git a/credential.h b/credential.h
index 2ea7d49..8a6d162 100644
--- a/credential.h
+++ b/credential.h
@@ -24,5 +24,6 @@
 void credential_reject(struct credential *);
 
 int credential_read(struct credential *, FILE *);
+void credential_from_url(struct credential *, const char *url);
 
 #endif /* CREDENTIAL_H */