diff --git a/class/LogicFunction.php b/class/LogicFunction.php
index b24c674..b48710a 100644
--- a/class/LogicFunction.php
+++ b/class/LogicFunction.php
@@ -249,7 +249,7 @@ class LogicFunction implements JsonSerializable
     }
 
     public function drawNetwork(string $outvar = "f"): string {
-        $expr = str_replace(["^"], ["xor"], $this->getExpression());
+        $expr = str_replace(["^"], [" xor "], $this->getExpression());
         return PythonUtils::execPy("draw_logic_network.py", [ $expr, $outvar ]);
     }
 }