diff --git a/folly/test/StringToFloatBenchmark.cpp b/folly/test/StringToFloatBenchmark.cpp
index 164ef040184..cc9071df8cc 100644
--- a/folly/test/StringToFloatBenchmark.cpp
+++ b/folly/test/StringToFloatBenchmark.cpp
@@ -110,6 +110,10 @@ class PosixNumericLocale {
 };
 } // namespace
 
+#if defined(_WIN32)
+constexpr auto strtod_l = _strtod_l;
+#endif
+
 BENCHMARK(hardcoded_decimal_notation_STRTOFL_COPY, n) {
   char* end;
   for (unsigned int i = 0; i < n; ++i) {