diff --git a/babeld/src/ubus.c b/babeld/src/ubus.c
index c1a4945..461ba5e 100644
--- a/babeld/src/ubus.c
+++ b/babeld/src/ubus.c
@@ -74,6 +74,8 @@ static int babeld_ubus_babeld_info(struct ubus_context *ctx_local,
   if (ret)
     fprintf(stderr, "Failed to send reply: %s\n", ubus_strerror(ret));
 
+  blob_buf_free(&b);
+
   return ret;
 }
 
@@ -144,6 +146,8 @@ static int babeld_ubus_get_xroutes(struct ubus_context *ctx_local,
   if (ret)
     fprintf(stderr, "Failed to send reply: %s\n", ubus_strerror(ret));
 
+  blob_buf_free(&b);
+
   return ret;
 }
 
@@ -247,6 +251,8 @@ static int babeld_ubus_get_routes(struct ubus_context *ctx_local,
   if (ret)
     fprintf(stderr, "Failed to send reply: %s\n", ubus_strerror(ret));
 
+  blob_buf_free(&b);
+
   return ret;
 }
 
@@ -317,6 +323,8 @@ static int babeld_ubus_get_neighbours(struct ubus_context *ctx_local,
   if (ret)
     fprintf(stderr, "Failed to send reply: %s\n", ubus_strerror(ret));
 
+  blob_buf_free(&b);
+
   return ret;
 }
 
@@ -383,6 +391,7 @@ void ubus_notify_route(struct babel_route *route, int kind) {
   babeld_add_route_buf(route, &b);
   snprintf(method, sizeof(method), "route.%s", local_kind(kind));
   ubus_notify(shared_ctx, &babeld_object, method, b.head, -1);
+  blob_buf_free(&b);
 }
 
 void ubus_notify_xroute(struct xroute *xroute, int kind) {
@@ -403,6 +412,7 @@ void ubus_notify_xroute(struct xroute *xroute, int kind) {
   babeld_add_xroute_buf(xroute, &b);
   snprintf(method, sizeof(method), "xroute.%s", local_kind(kind));
   ubus_notify(shared_ctx, &babeld_object, method, b.head, -1);
+  blob_buf_free(&b);
 }
 
 void ubus_notify_neighbour(struct neighbour *neigh, int kind) {
@@ -422,6 +432,7 @@ void ubus_notify_neighbour(struct neighbour *neigh, int kind) {
   babeld_add_neighbour_buf(neigh, &b);
   snprintf(method, sizeof(method), "neigh.%s", local_kind(kind));
   ubus_notify(shared_ctx, &babeld_object, method, b.head, -1);
+  blob_buf_free(&b);
 }
 
 void babeld_ubus_receive(fd_set *readfds) {