diff --git a/scripts/install.sh b/scripts/install.sh
index b5470cc..15aa1ef 100755
--- a/scripts/install.sh
+++ b/scripts/install.sh
@@ -46,8 +46,11 @@ fi
 echo "Installing heartbeat $what"
 
 if [ ! -d  $venv/hbd ]; then
+    set +e
     python3 -m pip --version > /dev/null 2>&1 
-    if [ $? -ne 0 ]; then
+    rc=$?
+    set -e
+    if [ $rc -ne 0 ]; then
         # truenas does not have pip installed by default, so we need to fetch get-pip.py and install pip
         echo "pip is not installed, fetching get-pip.py and installing pip"
         arg="--without-pip"