diff --git a/test/eierpecken.c b/test/eierpecken.c
index fb04a70..c295364 100644
--- a/test/eierpecken.c
+++ b/test/eierpecken.c
@@ -401,18 +401,18 @@ peck_dispatch_ei(struct peck *peck)
 }
 
 void
-peck_dispatch_until_stable(struct peck *peck)
+_peck_dispatch_until_stable(struct peck *peck, int lineno)
 {
 	bool eis, ei;
 
-	log_debug(peck, "dispatching until stable state >>>>>\n");
+	log_debug(peck, "dispatching until stable state at line %d >>>>>\n", lineno);
 
 	do {
 		eis = peck_dispatch_eis(peck);
 		ei = peck_dispatch_ei(peck);
 	} while (ei || eis);
 
-	log_debug(peck, "<<<<<\n");
+	log_debug(peck, "<<<<< stable at %d\n", lineno);
 }
 
 void
diff --git a/test/eierpecken.h b/test/eierpecken.h
index 3865bf0..feaa62a 100644
--- a/test/eierpecken.h
+++ b/test/eierpecken.h
@@ -149,7 +149,10 @@ DEFINE_TRIVIAL_CLEANUP_FUNC(struct peck*, peck_unref);
  * pending that are not processed by the current behaviors.
  */
 void
-peck_dispatch_until_stable(struct peck *peck);
+_peck_dispatch_until_stable(struct peck *peck, int lineno);
+
+#define peck_dispatch_until_stable(_p) \
+	_peck_dispatch_until_stable((_p), __LINE__)
 
 /**
  * Discard all pending events.