diff --git a/require-ess/tools/setE3Env.bash b/require-ess/tools/setE3Env.bash
index 90bac14a5199193b3b07a1e0197fd45f9e12e5bf..d8a6dbfa19290f41ad33675411bdedc9e0a5ec53 100644
--- a/require-ess/tools/setE3Env.bash
+++ b/require-ess/tools/setE3Env.bash
@@ -353,6 +353,6 @@ echo "$E3_REQUIRE_LOCATION" | awk -F '=' '{print $1}'
 echo "##############################################"
 echo
 
-BASE_version=$(echo "$EPICS_BASE" | awk -F '/' '{print $3}' | awk -F '-' '{print $2}')
+BASE_version=$(echo "${EPICS_BASE##*/}" | awk -F '-' '{print $2}')
 
 export PS1="\[\033[33m\]\u\[\033[m\] @ Base:$BASE_version Req:$E3_REQUIRE_VERSION \[\033[33;1m\] \w\[\033[m\]\$ "