1 files changed, 3 insertions, 0 deletions

diff --git a/doc/install.html b/doc/install.html
index 2c685c85..04bfe26d 100644
--- a/doc/install.html
+++ b/doc/install.html
@@ -214,6 +214,9 @@ msvcbuild
 Check the <tt>msvcbuild.bat</tt> file for more options.
 Then follow the installation instructions below.
 </p>
+<p>
+For an x64 to ARM64 cross-build run this first: <tt>vcvarsall.bat x64_arm64</tt>
+</p>
 <h3>Building with MinGW or Cygwin</h3>
 <p>
 Open a command prompt window and make sure the MinGW or Cygwin programs