Make the sqlite tests pass.
diff --git a/Modules/_sqlite/connection.c b/Modules/_sqlite/connection.c
index add2e6f..41b94aa 100644
--- a/Modules/_sqlite/connection.c
+++ b/Modules/_sqlite/connection.c
@@ -435,10 +435,8 @@
     } else if (PyString_Check(py_val)) {
         sqlite3_result_text(context, PyString_AsString(py_val), -1, SQLITE_TRANSIENT);
     } else if (PyUnicode_Check(py_val)) {
-        stringval = PyUnicode_AsUTF8String(py_val);
         if (stringval) {
-            sqlite3_result_text(context, PyString_AsString(stringval), -1, SQLITE_TRANSIENT);
-            Py_DECREF(stringval);
+            sqlite3_result_text(context, PyUnicode_AsString(stringval), -1, SQLITE_TRANSIENT);
         }
     } else {
         /* TODO: raise error */
@@ -1094,7 +1092,7 @@
         goto finally;
     }
 
-    if (!PyArg_ParseTuple(args, "O!O:create_collation(name, callback)", &PyString_Type, &name, &callable)) {
+    if (!PyArg_ParseTuple(args, "O!O:create_collation(name, callback)", &PyUnicode_Type, &name, &callable)) {
         goto finally;
     }