diff --git a/lib/ntlm/ntlm.c b/lib/ntlm/ntlm.c
index dbbbddd1f..b06864a84 100644
--- a/lib/ntlm/ntlm.c
+++ b/lib/ntlm/ntlm.c
@@ -590,7 +590,8 @@ heim_ntlm_decode_type2(const struct ntlm_buf *buf, struct ntlm_type2 *type2)
     ret = 0;
 
 out:
-    krb5_storage_free(in);
+    if (in)
+	krb5_storage_free(in);
     if (ret)
 	heim_ntlm_free_type2(type2);