diff --git a/include/grgsm/qa_utils/burst_sink.h b/include/grgsm/qa_utils/burst_sink.h
index 266cbc8..0d1330c 100644
--- a/include/grgsm/qa_utils/burst_sink.h
+++ b/include/grgsm/qa_utils/burst_sink.h
@@ -34,7 +34,7 @@
      * \ingroup gsm
      *
      */
-    class GSM_API burst_sink : virtual public gr::block
+    class GRGSM_API burst_sink : virtual public gr::block
     {
      public:
       typedef boost::shared_ptr<burst_sink> sptr;