diff --git a/build.sh b/build.sh
index a863208..951f334 100755
--- a/build.sh
+++ b/build.sh
@@ -6,6 +6,6 @@ cd frontend && npm install && npm run build && cd ..
 
 packr2
 
-CGO_ENABLED=1 GOOS=linux GOARCH=amd64 go build -a -tags netgo -ldflags "-linkmode external -extldflags -static -s -w" $@
+CGO_ENABLED=1 GOOS=linux GOARCH=${GOARCH:-amd64} go build -a -tags netgo -ldflags "-linkmode external -extldflags -static -s -w" $@
 
 packr2 clean