diff --git a/spa/plugins/filter-graph/audio-plugin.h b/spa/plugins/filter-graph/audio-plugin.h
index e05d7a80a..d8925ea33 100644
--- a/spa/plugins/filter-graph/audio-plugin.h
+++ b/spa/plugins/filter-graph/audio-plugin.h
@@ -33,9 +33,10 @@ struct spa_fga_port {
 #define SPA_FGA_PORT_AUDIO	(1ULL << 3)
 	uint64_t flags;
 
-#define SPA_FGA_HINT_BOOLEAN		(1ULL << 2)
-#define SPA_FGA_HINT_SAMPLE_RATE	(1ULL << 3)
-#define SPA_FGA_HINT_INTEGER		(1ULL << 5)
+#define SPA_FGA_HINT_BOOLEAN		(1ULL << 0)
+#define SPA_FGA_HINT_SAMPLE_RATE	(1ULL << 1)
+#define SPA_FGA_HINT_INTEGER		(1ULL << 2)
+#define SPA_FGA_HINT_LATENCY		(1ULL << 3)
 	uint64_t hint;
 	float def;
 	float min;
diff --git a/spa/plugins/filter-graph/ladspa_plugin.c b/spa/plugins/filter-graph/ladspa_plugin.c
index 45026c8e7..bad13e89f 100644
--- a/spa/plugins/filter-graph/ladspa_plugin.c
+++ b/spa/plugins/filter-graph/ladspa_plugin.c
@@ -116,7 +116,15 @@ static void ladspa_port_update_ranges(struct descriptor *dd, struct spa_fga_port
 	lower = d->PortRangeHints[p].LowerBound;
 	upper = d->PortRangeHints[p].UpperBound;
 
-	port->hint = hint;
+	port->hint = 0;
+	if (hint & LADSPA_HINT_TOGGLED)
+		port->hint |= SPA_FGA_HINT_BOOLEAN;
+	if (hint & LADSPA_HINT_SAMPLE_RATE)
+		port->hint |= SPA_FGA_HINT_SAMPLE_RATE;
+	if (hint & LADSPA_HINT_INTEGER)
+		port->hint |= SPA_FGA_HINT_INTEGER;
+	if (spa_streq(port->name, "latency"))
+		port->hint |= SPA_FGA_HINT_LATENCY;
 	port->def = get_default(port, hint, lower, upper);
 	port->min = lower;
 	port->max = upper;
diff --git a/spa/plugins/filter-graph/lv2_plugin.c b/spa/plugins/filter-graph/lv2_plugin.c
index a2af22d6a..51ca4bc6a 100644
--- a/spa/plugins/filter-graph/lv2_plugin.c
+++ b/spa/plugins/filter-graph/lv2_plugin.c
@@ -399,6 +399,8 @@ static const struct spa_fga_descriptor *lv2_plugin_make_desc(void *plugin, const
 	struct descriptor *desc;
 	uint32_t i;
 	float *mins, *maxes, *controls;
+	bool latent;
+	uint32_t latency_index;
 
 	desc = calloc(1, sizeof(*desc));
 	if (desc == NULL)
@@ -424,6 +426,9 @@ static const struct spa_fga_descriptor *lv2_plugin_make_desc(void *plugin, const
 	maxes = alloca(desc->desc.n_ports * sizeof(float));
 	controls = alloca(desc->desc.n_ports * sizeof(float));
 
+	latent = lilv_plugin_has_latency(p->p);
+	latency_index = latent ? lilv_plugin_get_latency_port_index(p->p) : 0;
+
 	lilv_plugin_get_port_ranges_float(p->p, mins, maxes, controls);
 
 	for (i = 0; i < desc->desc.n_ports; i++) {
@@ -445,6 +450,9 @@ static const struct spa_fga_descriptor *lv2_plugin_make_desc(void *plugin, const
 			fp->flags |= SPA_FGA_PORT_AUDIO;
 
 		fp->hint = 0;
+		if (latent && latency_index == i)
+			fp->flags |= SPA_FGA_HINT_LATENCY;
+
 		fp->min = mins[i];
 		fp->max = maxes[i];
 		fp->def = controls[i];