diff --git a/src/ckpool.c b/src/ckpool.c
index 5902c443..4206c615 100644
--- a/src/ckpool.c
+++ b/src/ckpool.c
@@ -501,7 +501,7 @@ out:
 
 /* Send a single message to a process instance when there will be no response,
  * closing the socket immediately. */
-bool _send_proc(proc_instance_t *pi, const char *msg, const char *file, const char *func, const int line)
+void _send_proc(proc_instance_t *pi, const char *msg, const char *file, const char *func, const int line)
 {
 	char *path = pi->us.path;
 	bool ret = false;
@@ -540,7 +540,6 @@ out:
 		LOGERR("Failure in send_proc from %s %s:%d", file, func, line);
 		childsighandler(15);
 	}
-	return ret;
 }
 
 /* Send a single message to a process instance and retrieve the response, then
diff --git a/src/ckpool.h b/src/ckpool.h
index a46889a4..e0e0f947 100644
--- a/src/ckpool.h
+++ b/src/ckpool.h
@@ -209,7 +209,7 @@ ckpool_t *global_ckp;
 bool ping_main(ckpool_t *ckp);
 void empty_buffer(connsock_t *cs);
 int read_socket_line(connsock_t *cs, const int timeout);
-bool _send_proc(proc_instance_t *pi, const char *msg, const char *file, const char *func, const int line);
+void _send_proc(proc_instance_t *pi, const char *msg, const char *file, const char *func, const int line);
 #define send_proc(pi, msg) _send_proc(pi, msg, __FILE__, __func__, __LINE__)
 char *_send_recv_proc(proc_instance_t *pi, const char *msg, const char *file, const char *func, const int line);
 #define send_recv_proc(pi, msg) _send_recv_proc(pi, msg, __FILE__, __func__, __LINE__)