diff --git a/src/Symfony/Component/Serializer/Normalizer/GetSetMethodNormalizer.php b/src/Symfony/Component/Serializer/Normalizer/GetSetMethodNormalizer.php
index 951005545f5e9..3cb9b992bd8db 100644
--- a/src/Symfony/Component/Serializer/Normalizer/GetSetMethodNormalizer.php
+++ b/src/Symfony/Component/Serializer/Normalizer/GetSetMethodNormalizer.php
@@ -118,6 +118,7 @@ private function isSetMethod(\ReflectionMethod $method): bool
         return !$method->isStatic()
             && !$method->getAttributes(Ignore::class)
             && 0 < $method->getNumberOfParameters()
+            && 3 < \strlen($method->name)
             && str_starts_with($method->name, 'set')
             && !ctype_lower($method->name[3])
             ;