diff --git a/script/tei2korapxml b/script/tei2korapxml
index 8d15173..aad3006 100755
--- a/script/tei2korapxml
+++ b/script/tei2korapxml
@@ -89,9 +89,6 @@
 my $_TEXT_HEADER_BEG  = "idsHeader type=\"text\"";     # analog
 
 
-## extern tokenization
-my $_GEN_TOK_EXT = $tokenizer_call || $tokenizer_korap ? 1 : 0;
-
 if ($use_tokenizer_sentence_splits && !$tokenizer_korap) {
   die $log->fatal("Sentence splitting is currently only supported by KorAP tokenizer (use -tk to activate it");
 }
@@ -306,7 +303,7 @@
         );
 
         # ~ tokenization ~
-        if ($_GEN_TOK_EXT) {
+        if ($ext_tok) {
 
           # Tokenize and output
           $ext_tok->tokenize($data->data)->to_zip(
@@ -334,7 +331,7 @@
 
         if ($use_tokenizer_sentence_splits) {
           $ext_tok->sentencize_from_previous_input($structures);
-        }
+        };
 
         # ~ write structures ~
         if (!$structures->empty) {
@@ -433,7 +430,7 @@
 
 $zipper->close;
 
-$ext_tok->close if $_GEN_TOK_EXT;
+$ext_tok->close if $ext_tok;
 
 exit(0);