diff --git a/examples/unix/ffi_example.py b/examples/unix/ffi_example.py
index f650e33708..3c3c3d2396 100644
--- a/examples/unix/ffi_example.py
+++ b/examples/unix/ffi_example.py
@@ -1,4 +1,5 @@
 import ffi
+import uctypes
 
 libc = ffi.open("libc.so.6")
 print("libc:", libc)
@@ -8,7 +9,7 @@ print()
 perror = libc.func("v", "perror", "s")
 time = libc.func("i", "time", "p")
 open = libc.func("i", "open", "si")
-qsort = libc.func("v", "qsort", "piip")
+qsort = libc.func("v", "qsort", "piiC")
 # And one variable
 errno = libc.var("i", "errno")
 
@@ -16,23 +17,23 @@ print("time:", time)
 print("UNIX time is:", time(None))
 print()
 
-perror("ffi before error")
+perror("perror before error")
 open("somethingnonexistent__", 0)
 print("errno object:", errno)
 print("errno value:", errno.get())
-perror("ffi after error")
+perror("perror after error")
 print()
 
 def cmp(pa, pb):
-    a = ffi.as_bytearray(pa, 1)
-    b = ffi.as_bytearray(pb, 1)
+    a = uctypes.bytearray_at(pa, 1)
+    b = uctypes.bytearray_at(pb, 1)
     print("cmp:", a, b)
     return a[0] - b[0]
 
-cmp_c = ffi.callback("i", cmp, "pp")
-print("callback:", cmp_c)
+cmp_cb = ffi.callback("i", cmp, "PP")
+print("callback:", cmp_cb)
 
 s = bytearray(b"foobar")
 print("org string:", s)
-qsort(s, len(s), 1, cmp_c)
+qsort(s, len(s), 1, cmp_cb)
 print("qsort'ed string:", s)