diff --git a/src/liblsquic/lsquic_full_conn_ietf.c b/src/liblsquic/lsquic_full_conn_ietf.c
index bc8e48d9..26e6f737 100644
--- a/src/liblsquic/lsquic_full_conn_ietf.c
+++ b/src/liblsquic/lsquic_full_conn_ietf.c
@@ -2428,46 +2428,6 @@ generate_max_stream_data_frame (struct ietf_full_conn *conn,
 }
 
 
-/* Return true if generated, false otherwise */
-static int
-generate_stream_blocked_frame (struct ietf_full_conn *conn,
-                                                struct lsquic_stream *stream)
-{
-    struct lsquic_packet_out *packet_out;
-    unsigned need;
-    uint64_t off;
-    int sz;
-
-    off = lsquic_stream_combined_send_off(stream);
-    need = conn->ifc_conn.cn_pf->pf_stream_blocked_frame_size(stream->id, off);
-    packet_out = get_writeable_packet(conn, need);
-    if (!packet_out)
-        return 0;
-    sz = conn->ifc_conn.cn_pf->pf_gen_stream_blocked_frame(
-                         packet_out->po_data + packet_out->po_data_sz,
-                         lsquic_packet_out_avail(packet_out), stream->id, off);
-    if (sz < 0)
-    {
-        ABORT_ERROR("Generating STREAM_BLOCKED frame failed");
-        return 0;
-    }
-    LSQ_DEBUG("generated %d-byte STREAM_BLOCKED "
-        "frame; stream_id: %"PRIu64"; offset: %"PRIu64, sz, stream->id, off);
-    EV_LOG_CONN_EVENT(LSQUIC_LOG_CONN_ID, "generated %d-byte STREAM_BLOCKED "
-        "frame; stream_id: %"PRIu64"; offset: %"PRIu64, sz, stream->id, off);
-    if (0 != lsquic_packet_out_add_frame(packet_out, conn->ifc_pub.mm, 0,
-                        QUIC_FRAME_STREAM_BLOCKED, packet_out->po_data_sz, sz))
-    {
-        ABORT_ERROR("adding frame to packet failed: %d", errno);
-        return 0;
-    }
-    lsquic_send_ctl_incr_pack_sz(&conn->ifc_send_ctl, packet_out, sz);
-    packet_out->po_frame_types |= 1 << QUIC_FRAME_STREAM_BLOCKED;
-    lsquic_stream_blocked_frame_sent(stream);
-    return 1;
-}
-
-
 static int
 generate_stop_sending_frame_by_id (struct ietf_full_conn *conn,
                 lsquic_stream_id_t stream_id, enum http_error_code error_code)
@@ -2855,7 +2815,7 @@ process_stream_ready_to_send (struct ietf_full_conn *conn,
     if (stream->sm_qflags & SMQF_SEND_MAX_STREAM_DATA)
         r &= generate_max_stream_data_frame(conn, stream);
     if (stream->sm_qflags & SMQF_SEND_BLOCKED)
-        r &= generate_stream_blocked_frame(conn, stream);
+        r &= lsquic_sendctl_gen_stream_blocked_frame(&conn->ifc_send_ctl, stream);
     if (stream->sm_qflags & SMQF_SEND_RST)
         r &= generate_rst_stream_frame(conn, stream);
     if (stream->sm_qflags & SMQF_SEND_STOP_SENDING)
diff --git a/src/liblsquic/lsquic_send_ctl.c b/src/liblsquic/lsquic_send_ctl.c
index 224c001c..160f3766 100644
--- a/src/liblsquic/lsquic_send_ctl.c
+++ b/src/liblsquic/lsquic_send_ctl.c
@@ -2897,6 +2897,42 @@ lsquic_send_ctl_get_packet_for_stream (lsquic_send_ctl_t *ctl,
 }
 
 
+/* Return true if generated, false otherwise */
+int
+lsquic_sendctl_gen_stream_blocked_frame (struct lsquic_send_ctl *ctl,
+                                         struct lsquic_stream *stream)
+{
+    struct lsquic_packet_out *packet_out;
+    const struct parse_funcs *const pf = stream->conn_pub->lconn->cn_pf;
+    unsigned need;
+    uint64_t off;
+    int sz;
+
+    off = lsquic_stream_combined_send_off(stream);
+    need = pf->pf_stream_blocked_frame_size(stream->id, off);
+    packet_out = lsquic_send_ctl_get_packet_for_stream(ctl, need,
+                       stream->conn_pub->path, stream);
+    if (!packet_out)
+        return 0;
+    sz = pf->pf_gen_stream_blocked_frame(
+                         packet_out->po_data + packet_out->po_data_sz,
+                         lsquic_packet_out_avail(packet_out), stream->id, off);
+    if (sz < 0)
+        return 0;
+    LSQ_DEBUG("generated %d-byte STREAM_BLOCKED "
+        "frame; stream_id: %"PRIu64"; offset: %"PRIu64, sz, stream->id, off);
+    EV_LOG_CONN_EVENT(LSQUIC_LOG_CONN_ID, "generated %d-byte STREAM_BLOCKED "
+        "frame; stream_id: %"PRIu64"; offset: %"PRIu64, sz, stream->id, off);
+    if (0 != lsquic_packet_out_add_frame(packet_out, &ctl->sc_enpub->enp_mm, 0,
+                        QUIC_FRAME_STREAM_BLOCKED, packet_out->po_data_sz, sz))
+        return 0;
+    lsquic_send_ctl_incr_pack_sz(ctl, packet_out, sz);
+    packet_out->po_frame_types |= 1 << QUIC_FRAME_STREAM_BLOCKED;
+    lsquic_stream_blocked_frame_sent(stream);
+    return 1;
+}
+
+
 #ifdef NDEBUG
 static
 #elif __GNUC__
diff --git a/src/liblsquic/lsquic_send_ctl.h b/src/liblsquic/lsquic_send_ctl.h
index 01156371..22414d40 100644
--- a/src/liblsquic/lsquic_send_ctl.h
+++ b/src/liblsquic/lsquic_send_ctl.h
@@ -236,6 +236,10 @@ lsquic_send_ctl_get_packet_for_stream (lsquic_send_ctl_t *,
                     unsigned need_at_least, const struct network_path *,
                     const struct lsquic_stream *);
 
+int
+lsquic_sendctl_gen_stream_blocked_frame (struct lsquic_send_ctl *ctl,
+                                         struct lsquic_stream *stream);
+
 struct lsquic_packet_out *
 lsquic_send_ctl_get_packet_for_crypto (struct lsquic_send_ctl *ctl,
     unsigned need_at_least, enum packnum_space, const struct network_path *);
diff --git a/src/liblsquic/lsquic_stream.c b/src/liblsquic/lsquic_stream.c
index 9788246c..2e826357 100644
--- a/src/liblsquic/lsquic_stream.c
+++ b/src/liblsquic/lsquic_stream.c
@@ -3695,10 +3695,15 @@ stream_write (lsquic_stream_t *stream, struct lsquic_reader *reader,
         }
         while (nwritten < len
                         && stream->sm_n_buffered < stream->sm_n_allocated);
-        return nwritten;
     }
     else
-        return stream_write_to_packets(stream, reader, thresh, swo);
+        nwritten = stream_write_to_packets(stream, reader, thresh, swo);
+    if ((stream->sm_qflags & SMQF_SEND_BLOCKED) &&
+        (stream->sm_bflags & SMBF_IETF))
+    {
+        lsquic_sendctl_gen_stream_blocked_frame(stream->conn_pub->send_ctl, stream);
+    }
+    return nwritten;
 }