diff --git a/Parser/tokenizer.h b/Parser/tokenizer.h
index 5e7ebf7..ba90a5f 100644
--- a/Parser/tokenizer.h
+++ b/Parser/tokenizer.h
@@ -55,7 +55,8 @@
 };
 
 extern struct tok_state *PyTokenizer_FromString(const char *);
-extern struct tok_state *PyTokenizer_FromFile(FILE *, char *, char *);
+extern struct tok_state *PyTokenizer_FromFile(FILE *, char*,
+					      char *, char *);
 extern void PyTokenizer_Free(struct tok_state *);
 extern int PyTokenizer_Get(struct tok_state *, char **, char **);