diff --git a/src/cmd/ksh93/include/nval.h b/src/cmd/ksh93/include/nval.h
index b68a87bdf..2a060e3f7 100644
--- a/src/cmd/ksh93/include/nval.h
+++ b/src/cmd/ksh93/include/nval.h
@@ -32,17 +32,7 @@
 #include	<ast.h>
 #include	<cdt.h>
 #include	<option.h>
-
-#ifdef BUILD_DTKSH
-#include       <hash.h>
-#endif
-
-/* for compatibility with old hash library */
-#define Hashtab_t	Dt_t
-#define HASH_BUCKET	1
-#define HASH_NOSCOPE	2
-#define HASH_SCOPE	4
-#define hashscope(x)	dtvnext(x)
+#include	<hash.h>
 
 typedef struct Namval Namval_t;
 typedef struct Namfun Namfun_t;
@@ -115,9 +105,6 @@ struct Namdecl
 /* This defines the attributes for an attributed name-value pair node */
 struct Namval
 {
-#if BUILD_DTKSH
-	HASH_HEADER;                    /* space for hash library */
-#endif
 	Dtlink_t	nvlink;		/* space for cdt links */
 	char		*nvname;	/* pointer to name of the node */
 #if _ast_sizeof_pointer == 8