diff --git a/builders/win-python-builder.psm1 b/builders/win-python-builder.psm1
index cdaa049..c409b8e 100644
--- a/builders/win-python-builder.psm1
+++ b/builders/win-python-builder.psm1
@@ -60,6 +60,8 @@ class WinPythonBuilder : PythonBuilder {
             } else {
                 $ArchitectureExtension = ".amd64"
             }
+        } elseif ($this.Architecture -eq "arm64") {
+                $ArchitectureExtension = "-arm64"
         }
 
         return $ArchitectureExtension