diff --git a/sprout/cstdlib/str_to_float.hpp b/sprout/cstdlib/str_to_float.hpp
index 5350decc..d1ed165a 100644
--- a/sprout/cstdlib/str_to_float.hpp
+++ b/sprout/cstdlib/str_to_float.hpp
@@ -241,9 +241,17 @@ namespace sprout {
 		inline SPROUT_CONSTEXPR FloatType
 		str_to_float(CStrIterator str, CharPtr* endptr) {
 			return !endptr ? sprout::detail::str_to_float<FloatType>(str)
+#ifdef __MINGW32__
+				: std::is_same<typename std::remove_cv<FloatType>::type, float>::value ? strtof(&*str, endptr)
+#else
 				: std::is_same<typename std::remove_cv<FloatType>::type, float>::value ? std::strtof(&*str, endptr)
+#endif
 				: std::is_same<typename std::remove_cv<FloatType>::type, double>::value ? std::strtod(&*str, endptr)
+#ifdef __MINGW32__
+				: strtold(&*str, endptr)
+#else
 				: std::strtold(&*str, endptr)
+#endif
 				;
 		}
 	}	// namespace detail
diff --git a/sprout/cstdlib/str_to_int.hpp b/sprout/cstdlib/str_to_int.hpp
index b40a7331..4c2893f8 100644
--- a/sprout/cstdlib/str_to_int.hpp
+++ b/sprout/cstdlib/str_to_int.hpp
@@ -109,10 +109,18 @@ namespace sprout {
 			return !endptr ? sprout::detail::str_to_int<IntType>(str, base)
 				: std::is_signed<IntType>::value
 					? sizeof(IntType) <= sizeof(long) ? static_cast<IntType>(std::strtol(&*str, endptr, base))
+#ifdef __MINGW32__
+						: sizeof(IntType) <= sizeof(long long) ? static_cast<IntType>(strtoll(&*str, endptr, base))
+#else
 						: sizeof(IntType) <= sizeof(long long) ? static_cast<IntType>(std::strtoll(&*str, endptr, base))
+#endif
 						: static_cast<IntType>(std::strtoimax(&*str, endptr, base))
 					: sizeof(IntType) <= sizeof(unsigned long) ? static_cast<IntType>(std::strtoul(&*str, endptr, base))
+#ifdef __MINGW32__
+						: sizeof(IntType) <= sizeof(unsigned long long) ? static_cast<IntType>(strtoull(&*str, endptr, base))
+#else
 						: sizeof(IntType) <= sizeof(unsigned long long) ? static_cast<IntType>(std::strtoull(&*str, endptr, base))
+#endif
 						: static_cast<IntType>(std::strtoumax(&*str, endptr, base))
 				;
 #endif