diff --git a/Pilot/pilotCommands.py b/Pilot/pilotCommands.py
index b6d9cef3..58ed659d 100644
--- a/Pilot/pilotCommands.py
+++ b/Pilot/pilotCommands.py
@@ -200,6 +200,7 @@ def _sourceEnvironmentFile(self):
         """Source the $DIRAC_RC_FILE and save the created environment in self.pp.installEnv"""
 
         retCode, output = self.executeAndGetOutput("bash -c 'source $DIRAC_RC_PATH && env'", self.pp.installEnv)
+        self.pp.installEnv = {}
         if retCode:
             self.log.error("Could not parse the %s file [ERROR %d]" % (self.pp.installEnv["DIRAC_RC_PATH"], retCode))
             self.exitWithError(retCode)