diff --git a/grep.changes b/grep.changes
index 324c18d..93629c6 100644
--- a/grep.changes
+++ b/grep.changes
@@ -1,3 +1,10 @@
+-------------------------------------------------------------------
+Wed Aug 16 14:21:13 UTC 2023 - Dominique Leuenberger <dimstar@opensuse.org>
+
+- export CONFIG_SHELL=/bin/sh before running configure: results in
+  the shell script (egrep/fgrep) to receive a /bin/sh shebang
+  instead of requiring bash (the local shell used to build).
+
 -------------------------------------------------------------------
 Thu May 18 12:00:38 UTC 2023 - Dirk Müller <dmueller@suse.com>
 
diff --git a/grep.spec b/grep.spec
index bebdc18..8dd63e4 100644
--- a/grep.spec
+++ b/grep.spec
@@ -46,6 +46,7 @@ match to a specified pattern.  By default, grep prints the matching lines.
 %autosetup -p1
 
 %build
+export CONFIG_SHELL=/bin/sh
 %configure \
   --disable-silent-rules \
   %{nil}