diff --git a/src/algorithms/tracking/adapters/glonass_l1_ca_dll_pll_tracking.cc b/src/algorithms/tracking/adapters/glonass_l1_ca_dll_pll_tracking.cc
index feb6ebefb..3b69f6bb2 100644
--- a/src/algorithms/tracking/adapters/glonass_l1_ca_dll_pll_tracking.cc
+++ b/src/algorithms/tracking/adapters/glonass_l1_ca_dll_pll_tracking.cc
@@ -136,6 +136,11 @@ void GlonassL1CaDllPllTracking::disconnect(gr::top_block_sptr top_block)
 }
 
 
+gr::basic_block_sptr GlonassL1CaDllPllTracking::get_left_block()
+{
+    return tracking_;
+}
+
 gr::basic_block_sptr GlonassL1CaDllPllTracking::get_right_block()
 {
     return tracking_;