diff --git a/src/ExpressionParser.php b/src/ExpressionParser.php
index db6b1555031..23b24aee26a 100644
--- a/src/ExpressionParser.php
+++ b/src/ExpressionParser.php
@@ -95,14 +95,18 @@ public function parseExpression($precedence = 0, $allowArrow = false)
 
         if (
             ($expr instanceof AddBinary || $expr instanceof SubBinary)
-            &&
-            (
-                ($expr->getNode('left') instanceof ConcatBinary && !$expr->getNode('left')->hasExplicitParentheses())
-                ||
-                ($expr->getNode('right') instanceof ConcatBinary && !$expr->getNode('right')->hasExplicitParentheses())
-            )
         ) {
-            trigger_deprecation('twig/twig', '3.15', \sprintf('As "+" / "-" will have a higher precedence than "~" in Twig 4.0, please add parentheses to keep the current behavior in "%s" at line %d.', $this->parser->getStream()->getSourceContext()->getName(), $token->getLine()));
+            /** @var AbstractExpression $left */
+            $left = $expr->getNode('left');
+            /** @var AbstractExpression $right */
+            $right = $expr->getNode('right');
+            if (
+                ($left instanceof ConcatBinary && !$left->hasExplicitParentheses())
+                ||
+                ($right instanceof ConcatBinary && !$right->hasExplicitParentheses())
+            ) {
+                trigger_deprecation('twig/twig', '3.15', \sprintf('As "+" / "-" will have a higher precedence than "~" in Twig 4.0, please add parentheses to keep the current behavior in "%s" at line %d.', $this->parser->getStream()->getSourceContext()->getName(), $token->getLine()));
+            }
         }
 
         if (0 === $precedence) {