diff --git a/ports/cef/string.rs b/ports/cef/string.rs
index f0a58ca7478..3dad83a711c 100644
--- a/ports/cef/string.rs
+++ b/ports/cef/string.rs
@@ -96,8 +96,8 @@ pub extern "C" fn cef_string_utf8_set(src: *const u8, src_len: size_t, output: *
 #[no_mangle]
 pub extern "C" fn cef_string_utf8_cmp(a: *const cef_string_utf8_t, b: *const cef_string_utf8_t) -> c_int {
     unsafe {
-       slice::raw::buf_as_slice(mem::transmute((*a).str), (*a).length as uint, |astr:&[u8]| {
-            slice::raw::buf_as_slice(mem::transmute((*b).str), (*b).length as uint, |bstr:&[u8]| {
+       slice::raw::buf_as_slice((*a).str as *const u8, (*a).length as uint, |astr:&[u8]| {
+            slice::raw::buf_as_slice((*b).str as *const u8, (*b).length as uint, |bstr:&[u8]| {
                   match astr.cmp(&bstr) {
                        Less => -1,
                        Equal => 0,