diff --git a/src/structs.h b/src/structs.h
index 091b886..490a973 100644
--- a/src/structs.h
+++ b/src/structs.h
@@ -3542,9 +3542,10 @@
 				    // window
 #endif
 
-    // four fields that are only used when there is a WinScrolled autocommand
+    // five fields that are only used when there is a WinScrolled autocommand
     linenr_T	w_last_topline;	    // last known value for w_topline
     colnr_T	w_last_leftcol;	    // last known value for w_leftcol
+    colnr_T	w_last_skipcol;	    // last known value for w_skipcol
     int		w_last_width;	    // last known value for w_width
     int		w_last_height;	    // last known value for w_height