Index: ext/fts3/fts3_tokenizer.c
==================================================================
--- ext/fts3/fts3_tokenizer.c
+++ ext/fts3/fts3_tokenizer.c
@@ -77,11 +77,11 @@
 
   zName = sqlite3_value_text(argv[0]);
   nName = sqlite3_value_bytes(argv[0])+1;
 
   if( argc==2 ){
-    if( fts3TokenizerEnabled(context) ){
+    if( fts3TokenizerEnabled(context) || sqlite3_value_frombind(argv[1]) ){
       void *pOld;
       int n = sqlite3_value_bytes(argv[1]);
       if( zName==0 || n!=sizeof(pPtr) ){
         sqlite3_result_error(context, "argument type mismatch", -1);
         return;

Index: test/fts3atoken.test
==================================================================
--- test/fts3atoken.test
+++ test/fts3atoken.test
@@ -84,14 +84,28 @@
     INSERT INTO t1(content) VALUES('That the colt from ol regret had got');
     SELECT content FROM t1 WHERE content MATCH 'movement'
   }
 } {{There was movement at the station}}
 
+unset -nocomplain simple
+set simple [db one {SELECT fts3_tokenizer('simple')}]
 sqlite3_db_config db SQLITE_DBCONFIG_ENABLE_FTS3_TOKENIZER 0
 do_catchsql_test 1.6 {
   SELECT fts3_tokenizer('blah', fts3_tokenizer('simple')) IS NULL;
 } {1 {fts3tokenize disabled}}
+do_test fts3atoken-1.7 {
+  execsql {
+    SELECT fts3_tokenizer('blah2', $simple) IS NULL;
+  }
+} {1}
+sqlite3_db_config db SQLITE_DBCONFIG_ENABLE_FTS3_TOKENIZER 1
+do_test fts3atoken-1.8 {
+  execsql {
+    SELECT fts3_tokenizer('blah2') == fts3_tokenizer('simple');
+  }
+} {1}
+
 
 
 #--------------------------------------------------------------------------
 # Test cases fts3atoken-2.* test error cases in the scalar function based
 # API for getting and setting tokenizers.