1 files changed, 3 insertions, 1 deletions
diff --git a/include/phat/representations/abstract_pivot_column.h b/include/phat/representations/abstract_pivot_column.h
index f441537..fbee368 100644
--- a/include/phat/representations/abstract_pivot_column.h
+++ b/include/phat/representations/abstract_pivot_column.h
@@ -47,8 +47,10 @@ namespace phat {
       
         void release_pivot_col() {
             index idx = idx_of_pivot_cols();
-            if( idx != -1 )
+            if( idx != -1 ) {
+                this->matrix[ idx ].clear();
                 pivot_cols().get_col_and_clear( this->matrix[ idx ] );
+            }
             idx_of_pivot_cols() = -1;
         }