diff --git a/tools/phpstan.baseline.neon b/tools/phpstan.baseline.neon
index 13b2597..c18f03c 100644
--- a/tools/phpstan.baseline.neon
+++ b/tools/phpstan.baseline.neon
@@ -1,5 +1,10 @@
 parameters:
 	ignoreErrors:
+		-
+			message: "#^Only numeric types are allowed in \\+, \\(int\\|string\\) given on the left side\\.$#"
+			count: 1
+			path: ../src/Printers/Dumper.php
+
 		-
 			message: "#^Unreachable statement \\- code above always terminates\\.$#"
 			count: 3