diff --git a/ChangeLog b/ChangeLog
index 6caccb76e..2471770bc 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2003-04-15  Werner Koch  <wk@gnupg.org>
+
+	* acinclude.m4 (GNUPG_CHECK_ENDIAN): Fix quoting of r.e. using
+	quadrigraphs.
+
 2003-04-08  Werner Koch  <wk@gnupg.org>
 
 	* Makefile.am (EXTRA_DIST): Add autogen.sh wrapper.
diff --git a/acinclude.m4 b/acinclude.m4
index 83af3c5fb..c2f6e740f 100644
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -114,7 +114,7 @@ define(GNUPG_CHECK_ENDIAN,
     tmp_assumed_endian=big
     if test "$cross_compiling" = yes; then
       case "$host_cpu" in
-         i[345678]* )
+         i@<:@345678@:>@* )
             tmp_assumed_endian=little
             ;;
          *)