diff -aur mb-ruby-0.3.0.orig/musicbrainz.c mb-ruby-0.3.0/musicbrainz.c
--- mb-ruby-0.3.0.orig/musicbrainz.c	2006-08-29 01:47:03.000000000 +0200
+++ mb-ruby-0.3.0/musicbrainz.c	2009-10-26 19:33:21.397764820 +0100
@@ -462,7 +462,7 @@
       break;
     default:
       /* grab object */
-      obj = RSTRING(argv[0])->ptr;
+      obj = RSTRING_PTR(argv[0]);
 
       /* allocate argument list */
       if ((args = malloc(sizeof(char*) * argc)) == NULL)
@@ -470,7 +470,7 @@
 
       /* add each argument list, then terminate the list  */
       for (i = 1; i < argc; i++)
-        args[i - 1] = RSTRING(argv[i])->ptr;
+        args[i - 1] = RSTRING_PTR(argv[i]);
       args[argc - 1] = NULL;
 
       /* execute query and free argument list */
@@ -1128,8 +1128,8 @@
   int len;
 
   Data_Get_Struct(self, trm_t, trm);
-  ptr = RSTRING(buf)->ptr;
-  len = RSTRING(buf)->len;
+  ptr = RSTRING_PTR(buf);
+  len = RSTRING_LEN(buf);
 
   return trm_GenerateSignature(*trm, ptr, len) ? Qtrue : Qfalse;
 }
@@ -1159,7 +1159,7 @@
       break;
     case 1:
       if (argv[0] != Qnil)
-        id = RSTRING(argv[0])->ptr;
+        id = RSTRING_PTR(argv[0]);
       break;
     default:
       rb_raise(eErr, "Invalid argument count: %d.", argc);