diff --git a/extras/vpnupgrade_alpine.sh b/extras/vpnupgrade_alpine.sh
index 94ef0d4..6a68647 100755
--- a/extras/vpnupgrade_alpine.sh
+++ b/extras/vpnupgrade_alpine.sh
@@ -169,6 +169,7 @@ get_libreswan() {
 install_libreswan() {
   bigecho "Compiling and installing Libreswan, please wait..."
   cd "libreswan-$SWAN_VER" || exit 1
+  service ipsec stop >/dev/null 2>&1
   sed -i '28s/stdlib\.h/sys\/types.h/' include/fd.h
 cat > Makefile.inc.local <<'EOF'
 WERROR_CFLAGS=-w -s
@@ -187,6 +188,7 @@ EOF
   cd /opt/src || exit 1
   /bin/rm -rf "/opt/src/libreswan-$SWAN_VER"
   if ! /usr/local/sbin/ipsec --version 2>/dev/null | grep -qF "$SWAN_VER"; then
+    service ipsec start >/dev/null 2>&1
     exiterr "Libreswan $SWAN_VER failed to build."
   fi
 }
diff --git a/extras/vpnupgrade_amzn.sh b/extras/vpnupgrade_amzn.sh
index 7c14282..b563e5e 100755
--- a/extras/vpnupgrade_amzn.sh
+++ b/extras/vpnupgrade_amzn.sh
@@ -153,6 +153,7 @@ get_libreswan() {
 install_libreswan() {
   bigecho "Compiling and installing Libreswan, please wait..."
   cd "libreswan-$SWAN_VER" || exit 1
+  service ipsec stop >/dev/null 2>&1
   [ "$SWAN_VER" = "4.1" ] && sed -i 's/ sysv )/ sysvinit )/' programs/setup/setup.in
 cat > Makefile.inc.local <<'EOF'
 WERROR_CFLAGS=-w -s
@@ -176,6 +177,7 @@ EOF
   cd /opt/src || exit 1
   /bin/rm -rf "/opt/src/libreswan-$SWAN_VER"
   if ! /usr/local/sbin/ipsec --version 2>/dev/null | grep -qF "$SWAN_VER"; then
+    service ipsec start >/dev/null 2>&1
     exiterr "Libreswan $SWAN_VER failed to build."
   fi
 }
diff --git a/extras/vpnupgrade_centos.sh b/extras/vpnupgrade_centos.sh
index eb1eda3..f6fa048 100755
--- a/extras/vpnupgrade_centos.sh
+++ b/extras/vpnupgrade_centos.sh
@@ -189,6 +189,7 @@ get_libreswan() {
 install_libreswan() {
   bigecho "Compiling and installing Libreswan, please wait..."
   cd "libreswan-$SWAN_VER" || exit 1
+  service ipsec stop >/dev/null 2>&1
   [ "$SWAN_VER" = "4.1" ] && sed -i 's/ sysv )/ sysvinit )/' programs/setup/setup.in
 cat > Makefile.inc.local <<'EOF'
 WERROR_CFLAGS=-w -s
@@ -212,6 +213,7 @@ EOF
   cd /opt/src || exit 1
   /bin/rm -rf "/opt/src/libreswan-$SWAN_VER"
   if ! /usr/local/sbin/ipsec --version 2>/dev/null | grep -qF "$SWAN_VER"; then
+    service ipsec start >/dev/null 2>&1
     exiterr "Libreswan $SWAN_VER failed to build."
   fi
 }
diff --git a/extras/vpnupgrade_ubuntu.sh b/extras/vpnupgrade_ubuntu.sh
index 36fb354..eec5a5d 100755
--- a/extras/vpnupgrade_ubuntu.sh
+++ b/extras/vpnupgrade_ubuntu.sh
@@ -188,6 +188,7 @@ get_libreswan() {
 install_libreswan() {
   bigecho "Compiling and installing Libreswan, please wait..."
   cd "libreswan-$SWAN_VER" || exit 1
+  service ipsec stop >/dev/null 2>&1
   [ "$SWAN_VER" = "4.1" ] && sed -i 's/ sysv )/ sysvinit )/' programs/setup/setup.in
 cat > Makefile.inc.local <<'EOF'
 WERROR_CFLAGS=-w -s
@@ -219,6 +220,7 @@ EOF
   cd /opt/src || exit 1
   /bin/rm -rf "/opt/src/libreswan-$SWAN_VER"
   if ! /usr/local/sbin/ipsec --version 2>/dev/null | grep -qF "$SWAN_VER"; then
+    service ipsec start >/dev/null 2>&1
     exiterr "Libreswan $SWAN_VER failed to build."
   fi
 }