diff --git a/.ci/cross-check.sh b/.ci/cross-check.sh
index 92536b2b..6ce39b19 100755
--- a/.ci/cross-check.sh
+++ b/.ci/cross-check.sh
@@ -11,10 +11,11 @@ if [ $(printenv CXX | grep clang) ]; then
     exit
 fi
 
-set -x
+set -e
 
 wget https://developer.arm.com/-/media/Files/downloads/gnu-a/8.3-2019.03/binrel/gcc-arm-8.3-2019.03-x86_64-aarch64-elf.tar.xz?revision=d678fd94-0ac4-485a-8054-1fbc60622a89&rev=d678fd940ac4485a80541fbc60622a89&hash=CAE423367ADC05B96378DB5EA2F9D7D1F4CC251A
-tar -tvf gcc-arm-8.3-2019.03-x86_64-aarch64-elf.tar.xz
+ls
+tar -zxf gcc-arm-8.3-2019.03-x86_64-aarch64-elf.tar.xz
 
 make clean
 export PATH=gcc-arm-8.3-2019.03-x86_64-aarch64-elf/bin:$PATH