diff --git a/wscleaner/env/activate_env_vars.sh b/wscleaner/env/activate_env_vars.sh
index b77e02c..20ed87b 100644
--- a/wscleaner/env/activate_env_vars.sh
+++ b/wscleaner/env/activate_env_vars.sh
@@ -5,6 +5,6 @@ export wsc_PPCACHE=$PYTHONPATH
 
 # Remove the dxtoolkit path from the pythonpath environment variable
 # Python searches this when importing modules, causing clashes with conda install 
-PYTHONPATH_CLEAN=$(echo $PYTHONPATH | sed s,/usr/share/dnanexus/lib/python2.7/site-packages:,,)
+PYTHONPATH_CLEAN=$(echo $PYTHONPATH | sed s,/usr/share/dnanexus/lib/python2.7/site-packages:,,g)
 # Set the new pythonpath
 export PYTHONPATH=$PYTHONPATH_CLEAN