diff --git a/build-telemac.bat b/build-telemac.bat
index d28f60b2b7fbd2cf80e6b8d11f623f76d42d49d5..7f14707a3fca19cd4a2332bdda8b638f62724080 100644
--- a/build-telemac.bat
+++ b/build-telemac.bat
@@ -462,8 +462,15 @@ cd %python%
 rd /s/q libs
 del dev.msi
 
-rem Remove the _pth file
-del python3*._pth
+rem Update the _pth file to include TELEMAC scripts and API folders
+for /f "tokens=*" %%g in ('dir python*._pth /b') do (set pth_file=%%g)
+for /f "tokens=*" %%g in ('dir python*.zip /b') do (set zip_file=%%g)
+echo %zip_file%> %pth_file%
+echo .>> %pth_file%
+echo Lib\site-packages>> %pth_file%
+echo ..\..\scripts\python3>> %pth_file%
+echo ..\..\builds\gnu.static\wrap_api\lib>> %pth_file%
+echo import site>> %pth_file%
 
 rem Copy python.exe to python3.exe to ensure the proper execution of TELEMAC
 rem scripts having the shebang form #!/usr/bin/env python3
@@ -659,9 +666,6 @@ echo rem Add TELEMAC binaries directory to PATH>> %file_name%
 echo set PATH=%%HOMETEL%%\builds\%%USETELCFG%%\lib;%%PATH%%>> %file_name%
 echo rem Add TELEMAC Python scripts folder to PATH>> %file_name%
 echo set PATH=%%HOMETEL%%\scripts\python3;%%PATH%%>> %file_name%
-echo rem Add TELEMAC Python scripts to PYTHONPATH>> %file_name%
-echo set PYTHONPATH=%%HOMETEL%%\scripts\python3;%%PYTHONPATH%%>> %file_name%
-echo set PYTHONPATH=%%HOMETEL%%\builds\%%USETELCFG%%\wrap_api\lib;%%PYTHONPATH%%>> %file_name%
 echo:>> %file_name%
 echo rem Paths to external libraries>> %file_name%
 echo rem HDF5>> %file_name%