diff --git a/Python/pystrtod.c b/Python/pystrtod.c
index 1c8202c..9145d4e 100644
--- a/Python/pystrtod.c
+++ b/Python/pystrtod.c
@@ -255,7 +255,7 @@ _PyOS_ascii_strtod(const char *nptr, char **endptr)
         char *copy, *c;
         /* Create a copy of the input, with the '.' converted to the
            locale-specific decimal point */
-        copy = (char *)PyMem_MALLOC(end - digits_pos +
+        copy = (char *)PyMem_Malloc(end - digits_pos +
                                     1 + decimal_point_len);
         if (copy == NULL) {
             *endptr = (char *)nptr;
@@ -286,7 +286,7 @@ _PyOS_ascii_strtod(const char *nptr, char **endptr)
                     (fail_pos - copy);
         }
 
-        PyMem_FREE(copy);
+        PyMem_Free(copy);
 
     }
     else {