diff --git a/build.sh b/build.sh
index 7d3aae7..706667d 100644
--- a/build.sh
+++ b/build.sh
@@ -14,7 +14,8 @@ _build()
 
 _install()
 {
-    cp bin/amd64 /bin/gomail
+    ARCH=`go env | grep GOARCH | cut -d \"  -f 2`
+    cp bin/${ARCH} /bin/gomail
     cp gomail.ini /etc/
 }