diff -Nru nix-2.6.0+dfsg/debian/changelog nix-2.6.0+dfsg/debian/changelog
--- nix-2.6.0+dfsg/debian/changelog	2022-02-01 18:29:24.000000000 +0000
+++ nix-2.6.0+dfsg/debian/changelog	2022-02-02 09:15:42.000000000 +0000
@@ -1,3 +1,9 @@
+nix (2.6.0+dfsg-3) unstable; urgency=medium
+
+  * Limit autopkgtest to supported architectures
+
+ -- Thomas Koch <thomas@koch.ro>  Wed, 02 Feb 2022 11:15:42 +0200
+
 nix (2.6.0+dfsg-2) unstable; urgency=medium
 
   * Only depend on libcpuid on architectures where it is available
diff -Nru nix-2.6.0+dfsg/debian/tests/control nix-2.6.0+dfsg/debian/tests/control
--- nix-2.6.0+dfsg/debian/tests/control	2022-01-30 19:06:01.000000000 +0000
+++ nix-2.6.0+dfsg/debian/tests/control	2022-02-02 09:15:42.000000000 +0000
@@ -5,3 +5,4 @@
 Tests: nix-env-and-shell
 Depends: @, ca-certificates, make
 Restrictions: allow-stderr, isolation-container, needs-root
+Architecture: amd64 arm64
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