diff --git a/debian/changelog b/debian/changelog
index 786c4e0..c6b18b0 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,10 @@
+ibutils (1.5.7+0.2.gbd7e502-4) UNRELEASED; urgency=medium
+
+  * Apply multi-arch hints.
+    + libibdm-dev, libibdm1: Add Multi-Arch: same.
+
+ -- Debian Janitor <janitor@jelmer.uk>  Sat, 30 Oct 2021 09:28:43 -0000
+
 ibutils (1.5.7+0.2.gbd7e502-3) unstable; urgency=medium
 
   * Team upload.
diff --git a/debian/control b/debian/control
index ca32935..975c2ba 100644
--- a/debian/control
+++ b/debian/control
@@ -29,6 +29,7 @@
 Architecture: linux-any
 Pre-Depends: ${misc:Pre-Depends}
 Depends: ${misc:Depends}, ${shlibs:Depends}
+Multi-Arch: same
 Description: InfiniBand network diagnostic library
  This package contains a library for building tools useful
  for diagnosing and testing InfiniBand based networks.
@@ -37,6 +38,7 @@
 Section: libdevel
 Architecture: linux-any
 Depends: libibdm1 (= ${binary:Version}), ${misc:Depends}, ${shlibs:Depends}
+Multi-Arch: same
 Description: Development files for the libibdm library
  This package contains header files for building applications
  against  libibdm, a library for building tools for