diff --git a/basis/hashtables/identity/identity.factor b/basis/hashtables/identity/identity.factor
index e8dfd509af..f7601ebd7b 100644
--- a/basis/hashtables/identity/identity.factor
+++ b/basis/hashtables/identity/identity.factor
@@ -34,6 +34,8 @@ M: identity-hashtable clone
 M: identity-hashtable assoc-like
     drop dup identity-hashtable? [ >identity-hashtable ] unless ; inline
 
+M: identity-hashtable new-assoc drop <identity-hashtable> ;
+
 SYNTAX: IH{ \ } [ >identity-hashtable ] parse-literal ;
 
 { "hashtables.identity" "prettyprint" } "hashtables.identity.prettyprint" require-when
diff --git a/basis/hashtables/sequences/sequences.factor b/basis/hashtables/sequences/sequences.factor
index fed14608ed..907d97b7c4 100644
--- a/basis/hashtables/sequences/sequences.factor
+++ b/basis/hashtables/sequences/sequences.factor
@@ -31,6 +31,8 @@ M: sequence-hashtable clone
 : >sequence-hashtable ( assoc -- shashtable )
     [ assoc-size <sequence-hashtable> ] keep assoc-union! ;
 
+M: sequence-hashtable new-assoc drop <sequence-hashtable> ;
+
 SYNTAX: SH{ \ } [ >sequence-hashtable ] parse-literal ;
 
 { "hashtables.sequences" "prettyprint" } "hashtables.sequences.prettyprint" require-when
diff --git a/basis/hashtables/wrapped/wrapped.factor b/basis/hashtables/wrapped/wrapped.factor
index 8c3b47da70..82d76c44bd 100644
--- a/basis/hashtables/wrapped/wrapped.factor
+++ b/basis/hashtables/wrapped/wrapped.factor
@@ -42,4 +42,6 @@ M: wrapped-hashtable >alist
 M: wrapped-hashtable equal?
     over wrapped-hashtable? [ [ underlying>> ] bi@ = ] [ 2drop f ] if ;
 
+INSTANCE: wrapped-hashtable assoc
+
 { "hashtables.wrapped" "prettyprint" } "hashtables.wrapped.prettyprint" require-when