diff --git a/Shorewall-core/install.sh b/Shorewall-core/install.sh
index 0ad939d33..6263ef7b1 100755
--- a/Shorewall-core/install.sh
+++ b/Shorewall-core/install.sh
@@ -167,6 +167,8 @@ fi
 if [ -z "${VARLIB}" ]; then
     VARLIB=${VARDIR}
     VARDIR='${VARLIB}/${PRODUCT}'
+elif [ -z "${VARDIR}" ]; then
+    VARDIR='${VARLIB}/${PRODUCT}'
 fi
 
 for var in SHAREDIR LIBEXECDIR PERLLIBDIR CONFDIR SBINDIR VARLIB VARDIR; do
diff --git a/Shorewall-core/lib.base b/Shorewall-core/lib.base
index 1d3398155..608889255 100644
--- a/Shorewall-core/lib.base
+++ b/Shorewall-core/lib.base
@@ -78,6 +78,8 @@ esac
 if [ -z "${VARLIB}" ]; then
     VARLIB=${VARDIR}
     VARDIR=${VARLIB}/$g_program
+elif [ -z "${VARDIR}" ]; then
+    VARDIR='${VARLIB}/${PRODUCT}'
 fi
 
 #
diff --git a/Shorewall-init/install.sh b/Shorewall-init/install.sh
index c957cab4f..4f9d97420 100755
--- a/Shorewall-init/install.sh
+++ b/Shorewall-init/install.sh
@@ -163,6 +163,8 @@ fi
 if [ -z "${VARLIB}" ]; then
     VARLIB=${VARDIR}
     VARDIR='${VARLIB}/${PRODUCT}'
+elif [ -z "${VARDIR}" ]; then
+    VARDIR='${VARLIB}/${PRODUCT}'
 fi
 
 for var in SHAREDIR LIBEXECDIR CONFDIR SBINDIR VARLIB VARDIR; do
diff --git a/Shorewall-lite/install.sh b/Shorewall-lite/install.sh
index 20cbfa24c..6a615fb4d 100755
--- a/Shorewall-lite/install.sh
+++ b/Shorewall-lite/install.sh
@@ -174,6 +174,8 @@ fi
 if [ -z "${VARLIB}" ]; then
     VARLIB=${VARDIR}
     VARDIR='${VARLIB}/${PRODUCT}'
+elif [ -z "${VARDIR}" ]; then
+    VARDIR='${VARLIB}/${PRODUCT}'
 fi
 
 for var in SHAREDIR LIBEXECDIRDIRDIR CONFDIR SBINDIR VARLIB VARDIR; do
diff --git a/Shorewall/install.sh b/Shorewall/install.sh
index 99ae45b04..873d7c517 100755
--- a/Shorewall/install.sh
+++ b/Shorewall/install.sh
@@ -196,6 +196,8 @@ fi
 if [ -z "${VARLIB}" ]; then
     VARLIB=${VARDIR}
     VARDIR='${VARLIB}/${PRODUCT}'
+elif [ -z "${VARDIR}" ]; then
+    VARDIR='${VARLIB}/${PRODUCT}'
 fi
 
 for var in SHAREDIR LIBEXECDIR PERLLIBDIR CONFDIR SBINDIR VARLIB VARDIR; do