diff --git a/src/globals.h b/src/globals.h
index 2e84e57..f5e1bb1 100644
--- a/src/globals.h
+++ b/src/globals.h
@@ -1639,6 +1639,10 @@
 EXTERN int  did_add_timer INIT(= FALSE);
 #endif
 
+#ifdef FEAT_EVAL
+EXTERN time_t time_for_testing INIT(= 0);
+#endif
+
 /*
  * Optional Farsi support.  Include it here, so EXTERN and INIT are defined.
  */