diff --git a/lang/pc/comp/chk_expr.c b/lang/pc/comp/chk_expr.c
index 2d1f1246d..8a74b5271 100644
--- a/lang/pc/comp/chk_expr.c
+++ b/lang/pc/comp/chk_expr.c
@@ -1383,7 +1383,7 @@ int (*ExprChkTable[])(struct node*) =
 	NodeCrash
 	};
 
-	int (*VarAccChkTable[])() =
+	int (*VarAccChkTable[])(struct node*) =
 	{
 		no_var_access,
 		ChkLinkOrName,
diff --git a/lang/pc/comp/chk_expr.h b/lang/pc/comp/chk_expr.h
index 396ee8fb5..77f29997b 100644
--- a/lang/pc/comp/chk_expr.h
+++ b/lang/pc/comp/chk_expr.h
@@ -2,11 +2,11 @@
 
 struct node;
 
-extern int	(*ExprChkTable[])();	/* table of expression checking
+extern int	(*ExprChkTable[])(struct node*);	/* table of expression checking
 					   functions, indexed by node class
 					*/
 
-extern int	(*VarAccChkTable[])();	/* table of variable-access checking
+extern int	(*VarAccChkTable[])(struct node*);	/* table of variable-access checking
 					   functions, indexed by node class
 					*/