diff --git a/lib/runtime.js b/lib/runtime.js
index 2408cfd..a9f063a 100644
--- a/lib/runtime.js
+++ b/lib/runtime.js
@@ -32,10 +32,10 @@
   ----------------------------------------------------------------------------*/
 
 //Provides: angstrom_bigstring_blit_to_bytes
-//Requires: string_unsafe_set, caml_ba_get_1
+//Requires: caml_string_unsafe_set, caml_ba_get_1
 function angstrom_bigstring_blit_to_bytes(src, src_off, dst, dst_off, len) {
   for (var i = 0; i < len; i++) {
-    string_unsafe_set(dst, dst_off + i, caml_ba_get_1(src, src_off + i));
+    caml_string_unsafe_set(dst, dst_off + i, caml_ba_get_1(src, src_off + i));
   }
 }
 
@@ -48,9 +48,9 @@ function angstrom_bigstring_blit_to_bigstring(src, src_off, dst, dst_off, len) {
 }
 
 //Provides: angstrom_bigstring_blit_from_bytes
-//Requires: caml_ba_set_1, string_unsafe_get
+//Requires: caml_ba_set_1, caml_string_unsafe_get
 function angstrom_bigstring_blit_from_bytes(src, src_off, dst, dst_off, len) {
   for (var i = 0; i < len; i++) {
-    caml_ba_set_1(dst, dst_off + i, string_unsafe_get(src, src_off + i));
+    caml_ba_set_1(dst, dst_off + i, caml_string_unsafe_get(src, src_off + i));
   }
 }