diff --git a/docs/changelog.md b/docs/changelog.md
index 743339314..5959cae30 100644
--- a/docs/changelog.md
+++ b/docs/changelog.md
@@ -8,6 +8,15 @@ SPDX-FileCopyrightText: 2011-2020 Carles Fernandez-Prades <carles.fernandez@cttc
 )
 <!-- prettier-ignore-end -->
 
+## [Unreleased](https://github.com/gnss-sdr/gnss-sdr/tree/next)
+
+### Improvements in Usability:
+
+- Fixed a bug when enabling pseudorange carrier smoothing in other bands than
+  L1.
+
+&nbsp;
+
 ## [GNSS-SDR v0.0.13](https://github.com/gnss-sdr/gnss-sdr/releases/tag/v0.0.13)
 
 ### Improvements in Efficiency:
diff --git a/src/algorithms/observables/gnuradio_blocks/hybrid_observables_gs.cc b/src/algorithms/observables/gnuradio_blocks/hybrid_observables_gs.cc
index 99498b74c..253605891 100644
--- a/src/algorithms/observables/gnuradio_blocks/hybrid_observables_gs.cc
+++ b/src/algorithms/observables/gnuradio_blocks/hybrid_observables_gs.cc
@@ -150,6 +150,17 @@ hybrid_observables_gs::hybrid_observables_gs(const Obs_Conf &conf_) : gr::block(
     d_channel_last_carrier_phase_rads = std::vector<double>(d_nchannels_out, 0.0);
 
     d_smooth_filter_M = static_cast<double>(conf_.smoothing_factor);
+    d_mapStringValues["1C"] = evGPS_1C;
+    d_mapStringValues["2S"] = evGPS_2S;
+    d_mapStringValues["L5"] = evGPS_L5;
+    d_mapStringValues["1B"] = evGAL_1B;
+    d_mapStringValues["5X"] = evGAL_5X;
+    d_mapStringValues["7X"] = evGAL_7X;
+    d_mapStringValues["1G"] = evGLO_1G;
+    d_mapStringValues["2G"] = evGLO_2G;
+    d_mapStringValues["B1"] = evBDS_B1;
+    d_mapStringValues["B2"] = evBDS_B2;
+    d_mapStringValues["B3"] = evBDS_B3;
 }