diff --git a/ports/cef/string_list.rs b/ports/cef/string_list.rs
index af7aa3207dd..a32cbdbcffd 100644
--- a/ports/cef/string_list.rs
+++ b/ports/cef/string_list.rs
@@ -19,10 +19,10 @@ pub extern "C" fn cef_string_list_alloc() -> *mut cef_string_list_t {
 }
 
 #[no_mangle]
-pub extern "C" fn cef_string_list_size(lt: *const cef_string_list_t) -> c_int {
+pub extern "C" fn cef_string_list_size(lt: *mut cef_string_list_t) -> c_int {
     unsafe {
         if fptr_is_null(mem::transmute(lt)) { return 0; }
-        let v: *const Vec<*mut cef_string_t> = mem::transmute(lt);
+        let v: *mut Vec<*mut cef_string_t> = mem::transmute(lt);
         (*v).len() as c_int
     }
 }
@@ -31,7 +31,7 @@ pub extern "C" fn cef_string_list_size(lt: *const cef_string_list_t) -> c_int {
 pub extern "C" fn cef_string_list_append(lt: *mut cef_string_list_t, value: *const cef_string_t) {
     unsafe {
         if fptr_is_null(mem::transmute(lt)) { return; }
-        let v: *const Vec<*mut cef_string_t> = mem::transmute(lt);
+        let v: *mut Vec<*mut cef_string_t> = mem::transmute(lt);
         let cs = cef_string_userfree_utf8_alloc();
         cef_string_utf8_set(mem::transmute((*value).str), (*value).length, cs, 1);
         (*v).push(cs);
@@ -42,7 +42,7 @@ pub extern "C" fn cef_string_list_append(lt: *mut cef_string_list_t, value: *con
 pub extern "C" fn cef_string_list_value(lt: *mut cef_string_list_t, index: c_int, value: *mut cef_string_t) -> c_int {
     unsafe {
         if index < 0 || fptr_is_null(mem::transmute(lt)) { return 0; }
-        let v: Box<Vec<*mut cef_string_t>> = mem::transmute(lt);
+        let v: *mut Vec<*mut cef_string_t> = mem::transmute(lt);
         if index as uint > (*v).len() - 1 { return 0; }
         let cs = (*v).get(index as uint);
         cef_string_utf8_set(mem::transmute((**cs).str), (**cs).length, value, 1)
@@ -53,7 +53,7 @@ pub extern "C" fn cef_string_list_value(lt: *mut cef_string_list_t, index: c_int
 pub extern "C" fn cef_string_list_clear(lt: *mut cef_string_list_t) {
     unsafe {
         if fptr_is_null(mem::transmute(lt)) { return; }
-        let v: *const Vec<*mut cef_string_t> = mem::transmute(lt);
+        let v: *mut Vec<*mut cef_string_t> = mem::transmute(lt);
         if (*v).len() == 0 { return; }
         let mut cs;
         while (*v).len() != 0 {
@@ -67,9 +67,9 @@ pub extern "C" fn cef_string_list_clear(lt: *mut cef_string_list_t) {
 pub extern "C" fn cef_string_list_free(lt: *mut cef_string_list_t) {
     unsafe {
         if fptr_is_null(mem::transmute(lt)) { return; }
-        let v: *const Vec<*mut cef_string_t> = mem::transmute(lt);
+        let v: Box<Vec<*mut cef_string_t>> = mem::transmute(lt);
         cef_string_list_clear(lt);
-        drop((*v));
+        drop(v);
     }
 }
 
@@ -77,7 +77,7 @@ pub extern "C" fn cef_string_list_free(lt: *mut cef_string_list_t) {
 pub extern "C" fn cef_string_list_copy(lt: *mut cef_string_list_t) -> *mut cef_string_list_t {
     unsafe {
         if fptr_is_null(mem::transmute(lt)) { return 0 as *mut cef_string_list_t; }
-        let v: Box<Vec<*mut cef_string_t>> = mem::transmute(lt);
+        let v: *mut Vec<*mut cef_string_t> = mem::transmute(lt);
         let lt2 = cef_string_list_alloc();
         for cs in (*v).iter() {
             cef_string_list_append(lt2, mem::transmute((*cs)));