diff --git a/include/grgsm/flow_control/dummy_burst_filter.h b/include/grgsm/flow_control/dummy_burst_filter.h
index 0922433..b969611 100644
--- a/include/grgsm/flow_control/dummy_burst_filter.h
+++ b/include/grgsm/flow_control/dummy_burst_filter.h
@@ -34,7 +34,7 @@
      * \ingroup gsm
      *
      */
-    class GSM_API dummy_burst_filter : virtual public gr::block
+    class GRGSM_API dummy_burst_filter : virtual public gr::block
     {
      public:
       typedef boost::shared_ptr<dummy_burst_filter> sptr;