diff --git a/ChangeLog b/ChangeLog
index 38246a7da..2d6196157 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2005-10-21  Adam Jackson  <ajax@freedesktop.org>
+
+	* configure.ac:
+	Bug #4840: Typo, x$xRES -> x$RES.  (George Fufutos)
+
 2005-10-20  Donnie Berkholz  <spyderous@gentoo.org>
 
 	* configure.ac: Bug #4817 <https://bugs.freedesktop.org/show_bug.cgi?id=4817>
diff --git a/configure.ac b/configure.ac
index 42865266e..bb2db007d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -482,7 +482,7 @@ if test "x$SCREENSAVER" = xyes; then
 fi
 
 AM_CONDITIONAL(RES, [test "x$RES" = xyes])
-if test "x$xRES" = xyes; then
+if test "x$RES" = xyes; then
 	AC_DEFINE(RES, 1, [Support X resource extension])
 	REQUIRED_MODULES="$REQUIRED_MODULES resourceproto"
 fi