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diff --git a/gr-digital/lib/msk_timing_recovery_cc_impl.h b/gr-digital/lib/msk_timing_recovery_cc_impl.h
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+++ b/gr-digital/lib/msk_timing_recovery_cc_impl.h
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+/* -*- c++ -*- */
+/*
+ * Copyright 2014 Free Software Foundation, Inc.
+ *
+ * This file is part of GNU Radio
+ *
+ * GNU Radio is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ *
+ * GNU Radio is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GNU Radio; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifndef INCLUDED_DIGITAL_MSK_TIMING_RECOVERY_CC_IMPL_H
+#define INCLUDED_DIGITAL_MSK_TIMING_RECOVERY_CC_IMPL_H
+
+#include <gnuradio/digital/msk_timing_recovery_cc.h>
+#include <gnuradio/filter/mmse_fir_interpolator_cc.h>
+#include <boost/circular_buffer.hpp>
+#include <gnuradio/filter/fir_filter_with_buffer.h>
+
+namespace gr {
+  namespace digital {
+
+    class msk_timing_recovery_cc_impl : public msk_timing_recovery_cc
+    {
+     private:
+        float d_sps;
+        float d_gain;
+        float d_limit;
+        filter::mmse_fir_interpolator_cc *d_interp;
+        filter::kernel::fir_filter_with_buffer_fff *d_decim;
+        gr_complex d_dly_conj_1, d_dly_conj_2, d_dly_diff_1;
+        float d_mu, d_omega, d_gain_omega;
+        int d_div;
+        int d_osps;
+        int d_loop_rate;
+
+     public:
+      msk_timing_recovery_cc_impl(float sps, float gain, float limit, int osps);
+      ~msk_timing_recovery_cc_impl();
+
+      // Where all the action really happens
+      void forecast (int noutput_items, gr_vector_int &ninput_items_required);
+
+      int general_work(int noutput_items,
+                       gr_vector_int &ninput_items,
+                       gr_vector_const_void_star &input_items,
+                       gr_vector_void_star &output_items);
+      void set_gain(float gain);
+      float get_gain(void);
+
+      void set_limit(float limit);
+      float get_limit(void);
+
+      void set_sps(float sps);
+      float get_sps(void);
+    };
+  } // namespace digital
+} // namespace gr
+
+#endif /* INCLUDED_DIGITAL_MSK_TIMING_RECOVERY_CC_IMPL_H */
+