diff --git a/ChangeLog b/ChangeLog
index d422f95..ba49314 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -4931,3 +4931,7 @@ Thu Nov 21 14:03:23 2002                        Michael Jennings (mej)
 
 Fix for Debian Bug #169933, seg fault with invalid default font index.
 ----------------------------------------------------------------------
+Thu Nov 21 14:11:29 2002                        Michael Jennings (mej)
+
+Fixed a typo noted by Bill Allombert <allomber@math.u-bordeaux.fr>.
+----------------------------------------------------------------------
diff --git a/configure.in b/configure.in
index 0ae882a..8a159b8 100644
--- a/configure.in
+++ b/configure.in
@@ -387,7 +387,7 @@ AC_ARG_ENABLE(etwin,
             fi], AC_MSG_RESULT(no)
 )
 
-if test ! -z "$FOUND_SCREEN" || ! -z "$FOUND_LIBTWIN"; then
+if test ! -z "$FOUND_SCREEN" || test ! -z "$FOUND_LIBTWIN"; then
   AC_DEFINE(ESCREEN)
 fi