diff --git a/tests/api/test_ssl_ext.c b/tests/api/test_ssl_ext.c
index 155cc09546..df34cba051 100644
--- a/tests/api/test_ssl_ext.c
+++ b/tests/api/test_ssl_ext.c
@@ -574,6 +574,7 @@ int test_wolfSSL_ALPN_GetPeerProtocol_inval_ext(void)
     ExpectIntEQ(wolfSSL_ALPN_GetPeerProtocol(ssl, &list, &listSz),
         WC_NO_ERR_TRACE(BUFFER_ERROR));
 
+    wolfSSL_ALPN_FreePeerProtocol(ssl, &list);
     wolfSSL_free(ssl);
     wolfSSL_CTX_free(ctx);
 #endif