diff --git a/src/stconn.c b/src/stconn.c
index 94ea9758a..1d4ebeaf3 100644
--- a/src/stconn.c
+++ b/src/stconn.c
@@ -1615,6 +1615,8 @@ int sc_conn_send(struct stconn *sc)
 		BUG_ON(sc_ep_test(sc, SE_FL_EOS|SE_FL_ERROR|SE_FL_ERR_PENDING) == (SE_FL_EOS|SE_FL_ERR_PENDING));
 		if (sc_ep_test(sc, SE_FL_ERROR))
 			sc->flags |= SC_FL_ERROR;
+		if (co_data(oc) || sc_ep_have_ff_data(sc))
+			sc_ep_report_blocked_send(sc, 0);
 		return 1;
 	}
 
@@ -2209,6 +2211,8 @@ int sc_applet_send(struct stconn *sc)
 
 	if (sc_ep_test(sc, SE_FL_ERROR | SE_FL_ERR_PENDING)) {
 		BUG_ON(sc_ep_test(sc, SE_FL_EOS|SE_FL_ERROR|SE_FL_ERR_PENDING) == (SE_FL_EOS|SE_FL_ERR_PENDING));
+		if (co_data(oc))
+			sc_ep_report_blocked_send(sc, 0);
 		return 1;
 	}