diff --git a/.gitignore b/.gitignore
index 5b257ed3bd8f83d417ce7497dac99bbe864080de..b83ade39fc4e4e3e7f08c862b6c5a9dbf8540fed 100644
--- a/.gitignore
+++ b/.gitignore
@@ -26,4 +26,6 @@ log
 # https://stackoverflow.com/questions/5533050/gitignore-exclude-folder-but-include-specific-subfolder
 # you can skip this first one if it is not already excluded by prior patterns
 .idea/*
-!.idea/runConfigurations/
\ No newline at end of file
+!.idea/runConfigurations/
+
+venv
\ No newline at end of file
diff --git a/.idea/runConfigurations/OBSW_TmTcClient_Service_17_Serial_.xml b/.idea/runConfigurations/OBSW_TmTcClient_Service_17_Serial_.xml
index ff8bcaf108630814dfa2570fdcd941c57c0ce526..40af93c6060ef79f2a6a88ef9fb817c3756b0141 100644
--- a/.idea/runConfigurations/OBSW_TmTcClient_Service_17_Serial_.xml
+++ b/.idea/runConfigurations/OBSW_TmTcClient_Service_17_Serial_.xml
@@ -12,8 +12,8 @@
     <option name="ADD_CONTENT_ROOTS" value="true" />
     <option name="ADD_SOURCE_ROOTS" value="true" />
     <EXTENSION ID="PythonCoverageRunConfigurationExtension" runner="coverage.py" />
-    <option name="SCRIPT_NAME" value="C:\Users\Robin\NoSyncDokumente\sourceobsw\tmtc\obsw_tmtc_client.py" />
-    <option name="PARAMETERS" value="-m 3 -s 17 -p -c 1" />
+    <option name="SCRIPT_NAME" value="$PROJECT_DIR$/obsw_tmtc_client.py" />
+    <option name="PARAMETERS" value="-m 3 -s 17 -c 1" />
     <option name="SHOW_COMMAND_LINE" value="false" />
     <option name="EMULATE_TERMINAL" value="true" />
     <option name="MODULE_MODE" value="false" />
diff --git a/obsw_tmtc_client.py b/obsw_tmtc_client.py
index 909736ebace6cb6bf0865b2848bcc65fc77ea32d..16087315ae3d045bf659b61b9a74f07b6e2d7249 100644
--- a/obsw_tmtc_client.py
+++ b/obsw_tmtc_client.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python3
+#!/usr/bin/python3.8
 """
 @file
     obsw_tmtc_client.py
@@ -8,10 +8,10 @@
     This client was developed by KSat for the SOURCE project to test the on-board software.
     It can be used to to send and receive TMTC packets and TMTC sequences.
 @manual
-Manual installation of crcmod might be needed
+Manual installation of crcmod and pyserial might be needed
     1. Install pip if it is not installed yet
-    2. Install crcmod and all other reqiored packages:
-        Command: pip install crcmod
+    2. Install crcmod and all other required packages:
+        Command: python3.8 -m pip install crcmod
         or use IDE (interpreter settings -> pip in PyCharm)
 
 The script can be used by specifying command line parameters.