diff --git a/libfreerdp-crypto/nla.c b/libfreerdp-crypto/nla.c
index 86c27cd67..b071168df 100644
--- a/libfreerdp-crypto/nla.c
+++ b/libfreerdp-crypto/nla.c
@@ -238,6 +238,9 @@ int credssp_client_authenticate(rdpCredssp* credssp)
 
 	while (true)
 	{
+#ifdef WITH_DEBUG_CREDSSP
+		printf("credssp_client_authenticate loop");
+#endif
 		output_buffer_desc.ulVersion = SECBUFFER_VERSION;
 		output_buffer_desc.cBuffers = 1;
 		output_buffer_desc.pBuffers = &output_buffer;
@@ -253,7 +256,7 @@ int credssp_client_authenticate(rdpCredssp* credssp)
 
 		if (have_input_buffer && (input_buffer.pvBuffer != NULL))
 		{
-//			free(input_buffer.pvBuffer);
+			free(input_buffer.pvBuffer);
 			input_buffer.pvBuffer = NULL;
 		}