diff --git a/test/test_mbuf.c b/test/test_mbuf.c
index dcdb4b1..453ffc8 100644
--- a/test/test_mbuf.c
+++ b/test/test_mbuf.c
@@ -279,7 +279,6 @@ END_TEST
 
 START_TEST (test_mbuf_extend_tailroom_wrong_type)
     struct MBuf *mbuf;
-    uint8_t *data;
     int rc;
     
     mbuf = uc_mbuf_new_inline(10);
@@ -288,8 +287,6 @@ START_TEST (test_mbuf_extend_tailroom_wrong_type)
     rc = uc_mbuf_extend_tailroom(mbuf, 1024);
     ck_assert_int_ne(rc, 0);
 
-    fail_if(data == NULL);
-
     uc_mbuf_free(mbuf);
 
 END_TEST