diff --git a/tools/plugin/alsaplug/tplg.c b/tools/plugin/alsaplug/tplg.c
index ac56efa854b3..8e478fa34729 100644
--- a/tools/plugin/alsaplug/tplg.c
+++ b/tools/plugin/alsaplug/tplg.c
@@ -1445,6 +1445,7 @@ int plug_free_pipelines(snd_sof_plug_t *plug, struct tplg_pipeline_list *pipelin
 
 void plug_free_topology(snd_sof_plug_t *plug)
 {
+	struct tplg_context *ctx = &plug->tplg;
 	struct list_item *item, *_item;
 
 	list_for_item_safe(item, _item, &plug->pcm_list) {
@@ -1483,5 +1484,6 @@ void plug_free_topology(snd_sof_plug_t *plug)
 		free(pipe_info);
 	}
 
+	free(ctx->tplg_base);
 	tplg_debug("freed all pipelines, widgets, routes and pcms\n");
 }