diff --git a/ChangeLog b/ChangeLog
index 9b9007a1..d3249141 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2009-07-23  Nicolas François  <nicolas.francois@centraliens.net>
+
+	* configure.in: Fixed definition of the SHELL configuration.
+
 2009-07-23  Nicolas François  <nicolas.francois@centraliens.net>
 
 	* etc/login.defs: SYS_GID_MIN /SYS_UID_MIN changed from 100 to
diff --git a/configure.in b/configure.in
index 861356b3..93f502c5 100644
--- a/configure.in
+++ b/configure.in
@@ -491,7 +491,7 @@ if test "$enable_utmpx" = "yes"; then
 	          [Define if utmpx should be used])
 fi
 
-AC_DEFINE_UNQUOTED(SHELL, [$SHELL], [The default shell.])
+AC_DEFINE_UNQUOTED(SHELL, ["$SHELL"], [The default shell.])
 
 AM_GNU_GETTEXT_VERSION(0.16)
 AM_GNU_GETTEXT([external], [need-ngettext])