diff --git a/Shorewall-common/lib.config b/Shorewall-common/lib.config
index 95165b714..ce315c241 100644
--- a/Shorewall-common/lib.config
+++ b/Shorewall-common/lib.config
@@ -1804,17 +1804,19 @@ do_initialize() {
     #
     PKTTYPE=$(added_param_value_no PKTTYPE $PKTTYPE)
 
-    case "${SHOREWALL_COMPILER:=shell}" in
-	perl)
-	    export CONFIG_PATH;
-	    return;
-	    ;;
-	shell)
-	    ;;
-	*)
-	    startup_error "Invalid value ($SHOREWALL_COMPILER) for SHOREWALL_COMPILER"
-	    ;;
-    esac
+    if [ $PROGRAM = compiler ]; then
+	case "${SHOREWALL_COMPILER:=shell}" in
+	    perl)
+		export CONFIG_PATH;
+		return;
+		;;
+	    shell)
+		;;
+	    *)
+		startup_error "Invalid value ($SHOREWALL_COMPILER) for SHOREWALL_COMPILER"
+		;;
+	esac
+    fi
 
     TMP_DIR=$(mktempdir)