diff --git a/src/data_placement_engine.cc b/src/data_placement_engine.cc
index e807d461d..07869e8ae 100644
--- a/src/data_placement_engine.cc
+++ b/src/data_placement_engine.cc
@@ -415,6 +415,7 @@ Status MinimizeIoTimePlacement(const std::vector<size_t> &blob_sizes,
     output.push_back(schema);
   }
   glp_delete_prob(lp);
+  glp_free_env();
   return result;
 }