diff --git a/include/ghc/filesystem.hpp b/include/ghc/filesystem.hpp
index 2c7538b..4924c73 100644
--- a/include/ghc/filesystem.hpp
+++ b/include/ghc/filesystem.hpp
@@ -4875,7 +4875,7 @@ GHC_INLINE space_info space(const path& p, std::error_code& ec) noexcept
         ec = detail::make_system_error();
         return {static_cast<uintmax_t>(-1), static_cast<uintmax_t>(-1), static_cast<uintmax_t>(-1)};
     }
-    return {static_cast<uintmax_t>(sfs.f_blocks * sfs.f_frsize), static_cast<uintmax_t>(sfs.f_bfree * sfs.f_frsize), static_cast<uintmax_t>(sfs.f_bavail * sfs.f_frsize)};
+    return {static_cast<uintmax_t>(sfs.f_blocks) * static_cast<uintmax_t>(sfs.f_frsize), static_cast<uintmax_t>(sfs.f_bfree) * static_cast<uintmax_t>(sfs.f_frsize), static_cast<uintmax_t>(sfs.f_bavail) * static_cast<uintmax_t>(sfs.f_frsize)};
 #endif
 }