diff --git a/hw/acpi/aml-build.c b/hw/acpi/aml-build.c
index f26466aeddc0..2bebf23db275 100644
--- a/hw/acpi/aml-build.c
+++ b/hw/acpi/aml-build.c
@@ -296,6 +296,7 @@ static void aml_free(gpointer data, gpointer user_data)
 {
     Aml *var = data;
     build_free_array(var->buf);
+    g_free(var);
 }
 
 Aml *init_aml_allocator(void)