diff --git a/src/utils/matlab/dll_pll_veml_plot_sample.m b/src/utils/matlab/dll_pll_veml_plot_sample.m
index 247d9e6df..273de3861 100644
--- a/src/utils/matlab/dll_pll_veml_plot_sample.m
+++ b/src/utils/matlab/dll_pll_veml_plot_sample.m
@@ -42,8 +42,8 @@ first_channel = 0;  % Number of the first channel
 path = '/dump_dir/';  %% CHANGE THIS PATH
 
 for N=1:1:channels
-    tracking_log_path = [path 'track_ch_' num2str(N+first_channel-1) '.dat']; %% CHANGE track_ch BY YOUR dump_filename
-    GNSS_tracking(N)= dll_pll_veml_read_tracking_dump(tracking_log_path);
+    tracking_log_path = [path 'track_ch_' num2str(N+first_channel-1) '.dat']; %% CHANGE track_ch_ BY YOUR dump_filename
+    GNSS_tracking(N) = dll_pll_veml_read_tracking_dump(tracking_log_path);
 end
 
 % GNSS-SDR format conversion to MATLAB GPS receiver
diff --git a/src/utils/matlab/glonass_ca_dll_pll_plot_sample.m b/src/utils/matlab/glonass_ca_dll_pll_plot_sample.m
index 304429641..d44799f6f 100644
--- a/src/utils/matlab/glonass_ca_dll_pll_plot_sample.m
+++ b/src/utils/matlab/glonass_ca_dll_pll_plot_sample.m
@@ -41,7 +41,7 @@ first_channel = 0;
 path = '/archive/';  %% CHANGE THIS PATH
 
 for N=1:1:channels
-    tracking_log_path = [path 'glo_tracking_ch_' num2str(N+first_channel-1) '.dat']; %% CHANGE epl_tracking_ch_ BY YOUR dump_filename
+    tracking_log_path = [path 'glo_tracking_ch_' num2str(N+first_channel-1) '.dat']; %% CHANGE glo_tracking_ch_ BY YOUR dump_filename
     GNSS_tracking(N) = dll_pll_veml_read_tracking_dump(tracking_log_path);
 end
 
diff --git a/src/utils/matlab/gps_l1_ca_dll_pll_plot_sample.m b/src/utils/matlab/gps_l1_ca_dll_pll_plot_sample.m
index c86b9a2f3..7dd7aa3d6 100644
--- a/src/utils/matlab/gps_l1_ca_dll_pll_plot_sample.m
+++ b/src/utils/matlab/gps_l1_ca_dll_pll_plot_sample.m
@@ -41,7 +41,7 @@ first_channel = 0;
 path = '/archive/';  %% CHANGE THIS PATH
 
 for N=1:1:channels
-    tracking_log_path = [path 'glo_tracking_ch_' num2str(N+first_channel-1) '.dat']; %% CHANGE epl_tracking_ch_ BY YOUR dump_filename
+    tracking_log_path = [path 'epl_tracking_ch_' num2str(N+first_channel-1) '.dat']; %% CHANGE epl_tracking_ch_ BY YOUR dump_filename
     GNSS_tracking(N) = dll_pll_veml_read_tracking_dump(tracking_log_path);
 end
 
diff --git a/src/utils/matlab/gps_l1_ca_pvt_plot_sample_agilent_cap2.m b/src/utils/matlab/gps_l1_ca_pvt_plot_sample_agilent_cap2.m
index b30b46a2b..694a3d615 100644
--- a/src/utils/matlab/gps_l1_ca_pvt_plot_sample_agilent_cap2.m
+++ b/src/utils/matlab/gps_l1_ca_pvt_plot_sample_agilent_cap2.m
@@ -1,5 +1,5 @@
-% Readx GNSS-SDR PVT dump binary file using the provided
-%  function and plotx some internal variables
+% Reads GNSS-SDR PVT dump binary file using the provided
+%  function and plots some internal variables
 % Javier Arribas, 2011. jarribas(at)cttc.es
 % -------------------------------------------------------------------------
 %