1 files changed, 1 insertions, 1 deletions
diff --git a/gr-blocks/include/gnuradio/blocks/sub.h b/gr-blocks/include/gnuradio/blocks/sub.h
index e982d2da31..9a8e0f7e8b 100644
--- a/gr-blocks/include/gnuradio/blocks/sub.h
+++ b/gr-blocks/include/gnuradio/blocks/sub.h
@@ -31,7 +31,7 @@ class BLOCKS_API sub : virtual public sync_block
 {
 public:
     // gr::blocks::sub::sptr
-    typedef boost::shared_ptr<sub<T>> sptr;
+    typedef std::shared_ptr<sub<T>> sptr;
 
     static sptr make(size_t vlen = 1);
 };