diff --git a/lib/attrsets.nix b/lib/attrsets.nix
index 83f8d0f34186..c0ac6eeb41bc 100644
--- a/lib/attrsets.nix
+++ b/lib/attrsets.nix
@@ -11,7 +11,7 @@ let
 in
 
 rec {
-  inherit (builtins) attrNames listToAttrs hasAttr isAttrs getAttr removeAttrs;
+  inherit (builtins) attrNames listToAttrs hasAttr isAttrs getAttr removeAttrs intersectAttrs;
 
 
   /**
diff --git a/lib/default.nix b/lib/default.nix
index 0e7b1d72337f..eb4890b94229 100644
--- a/lib/default.nix
+++ b/lib/default.nix
@@ -87,7 +87,7 @@ let
       recursiveUpdate matchAttrs mergeAttrsList overrideExisting showAttrPath getOutput
       getBin getLib getDev getMan chooseDevOutputs zipWithNames zip
       recurseIntoAttrs dontRecurseIntoAttrs cartesianProduct cartesianProductOfSets
-      mapCartesianProduct updateManyAttrsByPath;
+      mapCartesianProduct updateManyAttrsByPath intersectAttrs;
     inherit (self.lists) singleton forEach map foldr fold foldl foldl' imap0 imap1
       ifilter0 concatMap flatten remove findSingle findFirst any all count
       optional optionals toList range replicate partition zipListsWith zipLists