diff --git a/src/libstore/derivations.hh b/src/libstore/derivations.hh
index 292861065..7b677ca49 100644
--- a/src/libstore/derivations.hh
+++ b/src/libstore/derivations.hh
@@ -16,10 +16,6 @@ namespace nix {
 struct DerivationOutputHash {
     FileIngestionMethod method;
     Hash hash;
-    DerivationOutputHash(FileIngestionMethod method, Hash hash)
-        : method(std::move(method))
-        , hash(std::move(hash))
-    { }
     std::string printMethodAlgo() const;
 };