Index: src/libcfa/concurrency/coroutines
===================================================================
--- src/libcfa/concurrency/coroutines	(revision bd98b588c3ea1cfcbdb262cfe07a29ade49b0de4)
+++ src/libcfa/concurrency/coroutines	(revision 60819df72083395cf02cd880099d1be4c771a250)
@@ -73,9 +73,9 @@
 
 	assertf( src->last != 0,
-		"Attempt to suspend coroutine %.256s (%p) that has never been resumed.\n"
+		"Attempt to suspend coroutine \"%.256s\" (%p) that has never been resumed.\n"
 		"Possible cause is a suspend executed in a member called by a coroutine user rather than by the coroutine main.",
 		src->name, src );
 	assertf( src->last->notHalted,
-		"Attempt by coroutine %.256s (%p) to suspend back to terminated coroutine %.256s (%p).\n"
+		"Attempt by coroutine \"%.256s\" (%p) to suspend back to terminated coroutine \"%.256s\" (%p).\n"
 		"Possible cause is terminated coroutine's main routine has already returned.",
 		src->name, src, src->last->name, src->last );