diff --git a/include/simdjson/generic/numberparsing.h b/include/simdjson/generic/numberparsing.h
index e0b1fa5fd..6efc6680a 100644
--- a/include/simdjson/generic/numberparsing.h
+++ b/include/simdjson/generic/numberparsing.h
@@ -294,7 +294,7 @@ static bool parse_float_fallback(const uint8_t *ptr, double *outDouble) {
   *outDouble = simdjson::internal::from_chars((const char *)ptr);
   // We do not accept infinite values. Yes, there is a std::isfinite function, but
   // it appears to be broken in legacy libc++.
-  if ((*outDouble > 0x1.fffffffffffffp+1023) || (*outDouble < -0x1.fffffffffffffp+1023)) {
+  if ((*outDouble > 1.7976931348623157e308) || (*outDouble < -1.7976931348623157e308)) {
     return false;
   }
   return true;