diff --git a/src/configure.in b/src/configure.in
index b35b680ee5..404c9c3f07 100644
--- a/src/configure.in
+++ b/src/configure.in
@@ -461,6 +461,7 @@ AC_SUBST(DLSUFFIX)
 AC_SUBST(DL_LIB)
 AC_SUBST(USE_TCL)
 AC_SUBST(USE_TK)
+AC_SUBST(WISH)
 AC_SUBST(USE_PERL)
 AC_SUBST(USE_ODBC)
 AC_SUBST(MULTIBYTE)