diff --git a/debian/changelog b/debian/changelog
index 85ff6bb..5ff86dc 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -4,6 +4,7 @@
   * Switch to debhelper compatibility level 11.
   * Update watch file.
   * Rewrite debian/copyright in machine-readable format.
+  * Mark heroes-sound-effects as “Multi-Arch: foreign”.
 
  -- Stephen Kitt <skitt@debian.org>  Thu, 03 May 2018 09:03:59 +0200
 
diff --git a/debian/control b/debian/control
index 85b9c66..057fb9d 100644
--- a/debian/control
+++ b/debian/control
@@ -11,6 +11,7 @@
 
 Package: heroes-sound-effects
 Architecture: all
+Multi-Arch: foreign
 Recommends: heroes
 Depends: ${misc:Depends}
 Description: Optional sound files for heroes