diff --git a/compiler/lib/Support/KeySet.cpp b/compiler/lib/Support/KeySet.cpp
index 87a420d9f..3790eef3d 100644
--- a/compiler/lib/Support/KeySet.cpp
+++ b/compiler/lib/Support/KeySet.cpp
@@ -48,7 +48,7 @@ KeySet::generate(ClientParameters &params, uint64_t seed_msb,
            << "Cannot setup encryption material: " << std::move(fillError);
   }
 
-  return a;
+  return std::move(a);
 }
 
 std::unique_ptr<KeySet> KeySet::uninitialized() {
diff --git a/compiler/lib/Support/KeySetCache.cpp b/compiler/lib/Support/KeySetCache.cpp
index e433b40b1..6dedf3a51 100644
--- a/compiler/lib/Support/KeySetCache.cpp
+++ b/compiler/lib/Support/KeySetCache.cpp
@@ -108,7 +108,7 @@ KeySetCache::tryLoadKeys(ClientParameters &params, uint64_t seed_msb,
     return StreamStringError() << "Cannot setup encryption material: " << err;
   }
 
-  return key_set;
+  return std::move(key_set);
 }
 
 llvm::Error saveKeys(KeySet &key_set, llvm::SmallString<0> &folderPath) {