diff --git a/tests/fuzzing/wnm/wnm.c b/tests/fuzzing/wnm/wnm.c
index 7afc648e4..1ae018994 100644
--- a/tests/fuzzing/wnm/wnm.c
+++ b/tests/fuzzing/wnm/wnm.c
@@ -60,7 +60,7 @@ static int init_wpa(struct arg_ctx *ctx)
 
 static void deinit_wpa(struct arg_ctx *ctx)
 {
-	wnm_deallocate_memory(&ctx->wpa_s);
+	wnm_btm_reset(&ctx->wpa_s);
 }