diff --git a/pandas/_libs/src/parser/tokenizer.h b/pandas/_libs/src/parser/tokenizer.h
index 802b58d8ec916..4903e936dc348 100644
--- a/pandas/_libs/src/parser/tokenizer.h
+++ b/pandas/_libs/src/parser/tokenizer.h
@@ -162,9 +162,9 @@ typedef struct parser_t {
     int64_t skip_footer;
     // pick one, depending on whether the converter requires GIL
     double (*double_converter_nogil)(const char *, char **,
-                                     char, char, char, int);
+                                     char, char, char, int, int *, int *);
     double (*double_converter_withgil)(const char *, char **,
-                                       char, char, char, int);
+                                       char, char, char, int, int *, int *);
 
     // error handling
     char *warn_msg;