diff --git a/build.sh b/build.sh
index 52c9c894e8b..5640e00ee3b 100644
--- a/build.sh
+++ b/build.sh
@@ -98,6 +98,7 @@ BuildRelease() {
     url="${BASE}${i}.tgz"
     curl -L -o "${i}.tgz" "${url}"
     sudo tar xf "${i}.tgz" --strip-components 1 -C /usr/local
+    rm -f "${i}.tgz"
   done
   OS_ARCHES=(linux-musl-amd64 linux-musl-arm64 linux-musl-arm linux-musl-mips linux-musl-mips64 linux-musl-mips64le linux-musl-mipsle linux-musl-ppc64le linux-musl-s390x)
   CGO_ARGS=(x86_64-linux-musl-gcc aarch64-linux-musl-gcc arm-linux-musleabihf-gcc mips-linux-musl-gcc mips64-linux-musl-gcc mips64el-linux-musl-gcc mipsel-linux-musl-gcc powerpc64le-linux-musl-gcc s390x-linux-musl-gcc)