diff --git a/README.md b/README.md
index 2fa7a55..fec93c2 100644
--- a/README.md
+++ b/README.md
@@ -54,6 +54,7 @@ Complete list of the flags for goversioninfo:
   -special-build="": StringFileInfo.SpecialBuild
   -trademark="": StringFileInfo.LegalTrademarks
   -translation=0: translation ID
+  -64:false: generate 64-bit binaries on true
   -ver-major=-1: FileVersion.Major
   -ver-minor=-1: FileVersion.Minor
   -ver-patch=-1: FileVersion.Patch