diff --git a/.gitignore b/.gitignore
index 8f4e69b..4442651 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,2 @@
 /fixuid
-/fixuid-*-linux-amd64.tar.gz
-
+/fixuid-*.tar.gz
diff --git a/build.sh b/build.sh
index bbc8dc2..199e535 100755
--- a/build.sh
+++ b/build.sh
@@ -2,4 +2,4 @@
 cd $(dirname $0)
 
 rm -f ./fixuid
-env GOOS=linux GOARCH=amd64 CGO_ENABLED=0 go build
+GOOS=linux CGO_ENABLED=0 go build
diff --git a/pack.sh b/pack.sh
index afb870d..970df05 100755
--- a/pack.sh
+++ b/pack.sh
@@ -19,12 +19,13 @@ then
     exit 1
 fi
 
-./build.sh
-rm -f fixuid-*-linux-amd64.tar.gz
-perm="$(id -u):$(id -g)"
-sudo chown root:root fixuid
-sudo chmod u+s fixuid
-tar -cvzf fixuid-$1-linux-amd64.tar.gz fixuid
-sudo chmod u-s fixuid
-sudo chown $perm fixuid
-
+for GOARCH in amd64 arm64; do
+    ./build.sh
+    rm -f fixuid-*-linux-$GOARCH.tar.gz
+    perm="$(id -u):$(id -g)"
+    sudo chown root:root fixuid
+    sudo chmod u+s fixuid
+    tar -cvzf fixuid-$1-linux-$GOARCH.tar.gz fixuid
+    sudo chmod u-s fixuid
+    sudo chown $perm fixuid
+done