diff --git a/source/reduce/reducer.cpp b/source/reduce/reducer.cpp
index 18eeaeb66..16bb94fe6 100644
--- a/source/reduce/reducer.cpp
+++ b/source/reduce/reducer.cpp
@@ -54,10 +54,10 @@ void Reducer::SetInterestingnessFunction(
 }
 
 Reducer::ReductionResultStatus Reducer::Run(
-    std::vector<uint32_t>&& binary_in, std::vector<uint32_t>* binary_out,
+    const std::vector<uint32_t>& binary_in, std::vector<uint32_t>* binary_out,
     spv_const_reducer_options options,
     spv_validator_options validator_options) {
-  std::vector<uint32_t> current_binary(std::move(binary_in));
+  std::vector<uint32_t> current_binary(binary_in);
 
   spvtools::SpirvTools tools(target_env_);
   assert(tools.IsValid() && "Failed to create SPIRV-Tools interface");
@@ -138,13 +138,13 @@ void Reducer::AddDefaultReductionPasses() {
 }
 
 void Reducer::AddReductionPass(
-    std::unique_ptr<ReductionOpportunityFinder>&& finder) {
+    std::unique_ptr<ReductionOpportunityFinder> finder) {
   passes_.push_back(
       spvtools::MakeUnique<ReductionPass>(target_env_, std::move(finder)));
-}
+} 
 
 void Reducer::AddCleanupReductionPass(
-    std::unique_ptr<ReductionOpportunityFinder>&& finder) {
+    std::unique_ptr<ReductionOpportunityFinder> finder) {
   cleanup_passes_.push_back(
       spvtools::MakeUnique<ReductionPass>(target_env_, std::move(finder)));
 }
diff --git a/source/reduce/reducer.h b/source/reduce/reducer.h
index 864ce7570..f3ba18066 100644
--- a/source/reduce/reducer.h
+++ b/source/reduce/reducer.h
@@ -84,17 +84,17 @@ class Reducer {
 
   // Adds a reduction pass based on the given finder to the sequence of passes
   // that will be iterated over.
-  void AddReductionPass(std::unique_ptr<ReductionOpportunityFinder>&& finder);
+  void AddReductionPass(std::unique_ptr<ReductionOpportunityFinder> finder);
 
   // Adds a cleanup reduction pass based on the given finder to the sequence of
   // passes that will run after other passes.
   void AddCleanupReductionPass(
-      std::unique_ptr<ReductionOpportunityFinder>&& finder);
+      std::unique_ptr<ReductionOpportunityFinder> finder);
 
   // Reduces the given SPIR-V module |binary_out|.
   // The reduced binary ends up in |binary_out|.
   // A status is returned.
-  ReductionResultStatus Run(std::vector<uint32_t>&& binary_in,
+  ReductionResultStatus Run(const std::vector<uint32_t>& binary_in,
                             std::vector<uint32_t>* binary_out,
                             spv_const_reducer_options options,
                             spv_validator_options validator_options);