1 files changed, 2 insertions, 1 deletions
diff --git a/src/Flowgraph.cpp b/src/Flowgraph.cpp
index e12ff1e..ae86417 100644
--- a/src/Flowgraph.cpp
+++ b/src/Flowgraph.cpp
@@ -151,8 +151,9 @@ int Node::process()
     meta_vec_t all_input_mds;
     for (auto& md_vec_sp : myInputMetadata) {
         if (md_vec_sp) {
-            copy(md_vec_sp->begin(), md_vec_sp->end(),
+            move(md_vec_sp->begin(), md_vec_sp->end(),
                     back_inserter(all_input_mds));
+            md_vec_sp->clear();
         }
     }