diff --git a/nix/libstore/misc.cc b/nix/libstore/misc.cc
index 97618089bd..d4e6d1b4af 100644
--- a/nix/libstore/misc.cc
+++ b/nix/libstore/misc.cc
@@ -59,14 +59,6 @@ void computeFSClosure(StoreAPI & store, const Path & path,
 }
 
 
-Path findOutput(const Derivation & drv, string id)
-{
-    foreach (DerivationOutputs::const_iterator, i, drv.outputs)
-        if (i->first == id) return i->second.path;
-    throw Error(format("derivation has no output `%1%'") % id);
-}
-
-
 static void dfsVisit(StoreAPI & store, const PathSet & paths,
     const Path & path, PathSet & visited, Paths & sorted,
     PathSet & parents)
diff --git a/nix/libstore/misc.hh b/nix/libstore/misc.hh
index edbf24047e..f70cda9fd0 100644
--- a/nix/libstore/misc.hh
+++ b/nix/libstore/misc.hh
@@ -21,10 +21,6 @@ void computeFSClosure(StoreAPI & store, const Path & path,
     PathSet & paths, bool flipDirection = false,
     bool includeOutputs = false, bool includeDerivers = false);
 
-/* Return the path corresponding to the output identifier `id' in the
-   given derivation. */
-Path findOutput(const Derivation & drv, string id);
-
 bool willBuildLocally(const Derivation & drv);
 
 bool substitutesAllowed(const Derivation & drv);