diff --git a/include/grgsm/flow_control/burst_sdcch_subslot_splitter.h b/include/grgsm/flow_control/burst_sdcch_subslot_splitter.h
index aee2a24..2b48c43 100644
--- a/include/grgsm/flow_control/burst_sdcch_subslot_splitter.h
+++ b/include/grgsm/flow_control/burst_sdcch_subslot_splitter.h
@@ -40,7 +40,7 @@
      * \ingroup gsm
      *
      */
-    class GSM_API burst_sdcch_subslot_splitter : virtual public gr::block
+    class GRGSM_API burst_sdcch_subslot_splitter : virtual public gr::block
     {
      public:
       typedef boost::shared_ptr<burst_sdcch_subslot_splitter> sptr;