diff --git a/src/structs.h b/src/structs.h
index cab6885..5c606d8 100644
--- a/src/structs.h
+++ b/src/structs.h
@@ -1905,6 +1905,9 @@
 	AutoPatCmd *aucmd;  // autocommand info
 	except_T   *except; // exception info
     } es_info;
+#if defined(FEAT_EVAL)
+    scid_T	es_save_sid;	    // saved sc_sid when calling function
+#endif
 } estack_T;
 
 // Information returned by get_tty_info().