diff --git a/release.sh b/release.sh
index 798af33..517337f 100755
--- a/release.sh
+++ b/release.sh
@@ -29,7 +29,7 @@ fi
 
 time docker build -f Dockerfile . -t mstorsjo/llvm-mingw:latest -t mstorsjo/llvm-mingw:$TAG
 
-DISTRO=ubuntu-18.04
+DISTRO=ubuntu-18.04-$(uname -m)
 docker run --rm mstorsjo/llvm-mingw:latest sh -c "cd /opt && mv llvm-mingw llvm-mingw-$TAG-ucrt-$DISTRO && tar -Jcvf - llvm-mingw-$TAG-ucrt-$DISTRO" > llvm-mingw-$TAG-ucrt-$DISTRO.tar.xz
 
 if [ -n "$NATIVEONLY" ]; then