diff --git a/src/libstore/derivations.cc b/src/libstore/derivations.cc
index 205b90e55..973ddc86a 100644
--- a/src/libstore/derivations.cc
+++ b/src/libstore/derivations.cc
@@ -65,7 +65,7 @@ bool BasicDerivation::isBuiltin() const
 
 
 StorePath writeDerivation(ref<Store> store,
-    const Derivation & drv, const string & name, RepairFlag repair)
+    const Derivation & drv, std::string_view name, RepairFlag repair)
 {
     auto references = cloneStorePathSet(drv.inputSrcs);
     for (auto & i : drv.inputDrvs)
@@ -73,8 +73,8 @@ StorePath writeDerivation(ref<Store> store,
     /* Note that the outputs of a derivation are *not* references
        (that can be missing (of course) and should not necessarily be
        held during a garbage collection). */
-    string suffix = name + drvExtension;
-    string contents = drv.unparse(*store, false);
+    auto suffix = std::string(name) + drvExtension;
+    auto contents = drv.unparse(*store, false);
     return settings.readOnlyMode
         ? store->computeStorePathForText(suffix, contents, references)
         : store->addTextToStore(suffix, contents, references, repair);
diff --git a/src/libstore/derivations.hh b/src/libstore/derivations.hh
index c2df66229..7222d25e5 100644
--- a/src/libstore/derivations.hh
+++ b/src/libstore/derivations.hh
@@ -79,7 +79,7 @@ class Store;
 
 /* Write a derivation to the Nix store, and return its path. */
 StorePath writeDerivation(ref<Store> store,
-    const Derivation & drv, const string & name, RepairFlag repair = NoRepair);
+    const Derivation & drv, std::string_view name, RepairFlag repair = NoRepair);
 
 /* Read a derivation from a file. */
 Derivation readDerivation(const Store & store, const Path & drvPath);