diff --git a/Python/pystrtod.c b/Python/pystrtod.c
index 95c0ff6..c2ce71d 100644
--- a/Python/pystrtod.c
+++ b/Python/pystrtod.c
@@ -101,7 +101,7 @@
 	_Py_SET_53BIT_PRECISION_END;
 
 	if (*endptr == nptr)
-		/* string might represent and inf or nan */
+		/* string might represent an inf or nan */
 		result = _Py_parse_inf_or_nan(nptr, endptr);
 
 	return result;