diff --git a/src/include/66/svc.h b/src/include/66/svc.h
index bf0646323348477631d1a2316c1c92dd41b84af3..219dbb49eef29ebb9247af3f57f175162b81201a 100644
--- a/src/include/66/svc.h
+++ b/src/include/66/svc.h
@@ -22,6 +22,7 @@
 extern int svc_scandir_ok (char const *dir) ;
 extern int svc_scandir_send(char const *scandir,char const *signal) ;
 extern int svc_send(char const *const *list, unsigned int nservice, char **sig, unsigned int siglen, ssexec_t *info) ;
+extern int svc_send_wait(char const *const *list, unsigned int nservice, char **sig, unsigned int siglen, ssexec_t *info) ;
 extern void svc_unsupervise(unsigned int *alist, unsigned int alen, graph_t *g, resolve_service_t *ares, unsigned int areslen) ;
 
 #endif