diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index f3600ae8e..03993fa1d 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -4,7 +4,8 @@
 image: debian
 
 before_script:
-  - dpkg --add-architecture i386 --add-architecture arm64
+  - dpkg --add-architecture i386
+  - dpkg --add-architecture arm64
   - apt-get update -qq
   - apt-get install -y \
       libc6-dev:amd64 libc6-dev:i386 libc6-dev:arm64 \
diff --git a/tests/Makefile b/tests/Makefile
index a3b988c52..1b3cd881d 100644
--- a/tests/Makefile
+++ b/tests/Makefile
@@ -8,7 +8,8 @@ TARGETS=native ia32 aarch64
 #
 # The relevant packages that you need to run this:
 #
-#   dpkg --add-architecture i386 --add-architecture arm64
+#   dpkg --add-architecture i386
+#   dpkg --add-architecture arm64
 #   apt-get update -qq
 #   apt-get install -y \
 #     libc6-dev:amd64 libc6-dev:i386 libc6-dev:arm64 \