--- a/test/buffer_tests.c	Fri Oct 12 10:54:55 2012 +0200
+++ b/test/buffer_tests.c	Fri Oct 12 12:08:34 2012 +0200
@@ -123,7 +123,7 @@
     UCX_TEST_ASSERT(ucx_buffer_eof(b), "eof shall be set");
 
     ucx_buffer_seek(b, 8, SEEK_SET);
-    r = ucx_buffer_write("not", 1, 3, b);
+    r = ucx_buffer_write((void*)"not", 1, 3, b);
     UCX_TEST_ASSERT(r == 3, "three bytes should be replace");
     UCX_TEST_ASSERT(memcmp(buffer, "this is not too much", 16) == 0,
             "modified buffer is incorrect");