diff --git a/spack.changes b/spack.changes
index 1cc9195..3519920 100644
--- a/spack.changes
+++ b/spack.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Mon Jun 26 12:26:10 UTC 2023 - Egbert Eich <eich@suse.com>
+
+- Change /usr/bin to %{_bindir}.
+
 -------------------------------------------------------------------
 Thu Jun  1 11:32:36 UTC 2023 - Egbert Eich <eich@suse.com>
 
diff --git a/spack.spec b/spack.spec
index 1165122..36058d4 100644
--- a/spack.spec
+++ b/spack.spec
@@ -250,9 +250,9 @@ gzip _build/texinfo/Spack.info _build/man/spack.1
 # with doc
 %endif
 cd -
-grep -rl '#! /usr/bin/env bash' . | xargs -i@ sed -i 's|#! /usr/bin/env bash|#!/usr/bin/bash|g' @
-grep -rl '#!/bin/env sh' . | xargs -i@ sed -i 's|#!/bin/env sh|#!/usr/bin/sh|g' @
-grep -rl '#!/usr/bin/env bash' . | xargs -i@ sed -i 's|#!/usr/bin/env bash|#!/usr/bin/bash|g' @
+grep -rl '#! /usr/bin/env bash' . | xargs -i@ sed -i 's|#! /usr/bin/env bash|#!%{_bindir}/bash|g' @
+grep -rl '#!/bin/env sh' . | xargs -i@ sed -i 's|#!/bin/env sh|#!%{_bindir}/sh|g' @
+grep -rl '#!/usr/bin/env bash' . | xargs -i@ sed -i 's|#!/usr/bin/env bash|#!%{_bindir}/bash|g' @
 grep -rl '/var/spack/repos' | grep -v "cmd/list.py" | \
     xargs -i@ sed -i 's|/var/spack/repos|/usr/share/spack/repos|g' @
 grep -rl "spack/" . | xargs -i@ sed -i \