diff --git a/lib/isc/netmgr/netmgr-int.h b/lib/isc/netmgr/netmgr-int.h
index 4bc5fc22a3..6e8a78c688 100644
--- a/lib/isc/netmgr/netmgr-int.h
+++ b/lib/isc/netmgr/netmgr-int.h
@@ -1583,6 +1583,9 @@ void
 isc__nmhandle_tls_setwritetimeout(isc_nmhandle_t *handle,
 				  uint64_t write_timeout);
 
+bool
+isc__nmsocket_tls_timer_running(isc_nmsocket_t *sock);
+
 void
 isc__nm_tls_failed_read_cb(isc_nmsocket_t *sock, isc_result_t result,
 			   bool async);
diff --git a/lib/isc/netmgr/netmgr.c b/lib/isc/netmgr/netmgr.c
index d3ba6f2382..ba97f97d0b 100644
--- a/lib/isc/netmgr/netmgr.c
+++ b/lib/isc/netmgr/netmgr.c
@@ -1545,6 +1545,15 @@ bool
 isc__nmsocket_timer_running(isc_nmsocket_t *sock) {
 	REQUIRE(VALID_NMSOCK(sock));
 
+	switch (sock->type) {
+#ifdef HAVE_LIBNGHTTP2
+	case isc_nm_tlssocket:
+		return (isc__nmsocket_tls_timer_running(sock));
+#endif /* HAVE_LIBNGHTTP2 */
+	default:
+		break;
+	}
+
 	return (uv_is_active((uv_handle_t *)&sock->read_timer));
 }
 
diff --git a/lib/isc/netmgr/tlsstream.c b/lib/isc/netmgr/tlsstream.c
index e1602461ee..5aae50419b 100644
--- a/lib/isc/netmgr/tlsstream.c
+++ b/lib/isc/netmgr/tlsstream.c
@@ -1215,6 +1215,20 @@ isc__nmsocket_tls_reset(isc_nmsocket_t *sock) {
 	}
 }
 
+bool
+isc__nmsocket_tls_timer_running(isc_nmsocket_t *sock) {
+	REQUIRE(VALID_NMSOCK(sock));
+	REQUIRE(sock->type == isc_nm_tlssocket);
+
+	if (sock->outerhandle != NULL) {
+		INSIST(VALID_NMHANDLE(sock->outerhandle));
+		REQUIRE(VALID_NMSOCK(sock->outerhandle->sock));
+		return (isc__nmsocket_timer_running(sock->outerhandle->sock));
+	}
+
+	return (false);
+}
+
 const char *
 isc__nm_tls_verify_tls_peer_result_string(const isc_nmhandle_t *handle) {
 	isc_nmsocket_t *sock = NULL;