diff --git a/src/configure.in b/src/configure.in
index dd21f9d1d462fb7aa3277bc237703761bae0631b..153cf1e1c770eb0068d31c66d72868dd256fcbaa 100644
--- a/src/configure.in
+++ b/src/configure.in
@@ -1,4 +1,4 @@
-AC_REVISION("$Id: configure.in,v 1.155 1998/07/17 11:38:40 grubba Exp $")
+AC_REVISION("$Id: configure.in,v 1.156 1998/07/21 13:59:11 grubba Exp $")
 AC_INIT(interpret.c)
 AC_CONFIG_HEADER(machine.h)
 
@@ -993,7 +993,7 @@ AC_TRY_LINK([
 ],[
   int _tz;
   _tz=timezone;
-  timezone=tz_;
+  timezone=_tz;
 ],pike_cv_has_external_timezone=yes,pike_cv_has_external_timezone=no)
 ])