diff --git a/cosets/src/tc.cpp b/cosets/src/tc.cpp
index 12ca511..e1d1f37 100644
--- a/cosets/src/tc.cpp
+++ b/cosets/src/tc.cpp
@@ -77,6 +77,7 @@ struct Table {
       std::vector<std::vector<int>> res(size());
       for (int i = 0; i < (int) size(); ++i) {
          res[i] = *vecs[i];
+         delete vecs[i];
       }
 
       return res;