diff --git a/spa/plugins/audioconvert/audioconvert.c b/spa/plugins/audioconvert/audioconvert.c
index d99610ea0..5b6300298 100644
--- a/spa/plugins/audioconvert/audioconvert.c
+++ b/spa/plugins/audioconvert/audioconvert.c
@@ -485,7 +485,7 @@ static int impl_node_enum_params(void *object, int seq,
 	struct impl *this = object;
 	struct spa_pod *param;
 	struct spa_pod_builder b = { 0 };
-	uint8_t buffer[1024];
+	uint8_t buffer[4096];
 	struct spa_result_node_params result;
 	uint32_t count = 0;
 	int res;
@@ -1003,7 +1003,7 @@ impl_node_port_enum_params(void *object, int seq,
 	struct impl *this = object;
 	struct spa_pod *param;
 	struct spa_pod_builder b = { 0 };
-	uint8_t buffer[1024];
+	uint8_t buffer[4096];
 	struct spa_result_node_params result;
 	uint32_t count = 0;