diff --git a/src/Symfony/Component/PropertyAccess/PropertyAccessor.php b/src/Symfony/Component/PropertyAccess/PropertyAccessor.php
index f063e8f007..aae083e4b7 100644
--- a/src/Symfony/Component/PropertyAccess/PropertyAccessor.php
+++ b/src/Symfony/Component/PropertyAccess/PropertyAccessor.php
@@ -82,11 +82,16 @@ class PropertyAccessor implements PropertyAccessorInterface
      */
     public function getValue($objectOrArray, $propertyPath)
     {
-        $propertyPath = $this->getPropertyPath($propertyPath);
-
         $zval = [
             self::VALUE => $objectOrArray,
         ];
+
+        if (\is_object($objectOrArray) && false === strpbrk((string) $propertyPath, '.[')) {
+            return $this->readProperty($zval, $propertyPath)[self::VALUE];
+        }
+
+        $propertyPath = $this->getPropertyPath($propertyPath);
+
         $propertyValues = $this->readPropertiesUntil($zval, $propertyPath, $propertyPath->getLength(), $this->ignoreInvalidIndices);
 
         return $propertyValues[\count($propertyValues) - 1][self::VALUE];
@@ -97,6 +102,22 @@ class PropertyAccessor implements PropertyAccessorInterface
      */
     public function setValue(&$objectOrArray, $propertyPath, $value)
     {
+        if (\is_object($objectOrArray) && false === strpbrk((string) $propertyPath, '.[')) {
+            $zval = [
+                self::VALUE => $objectOrArray,
+            ];
+
+            try {
+                $this->writeProperty($zval, $propertyPath, $value);
+
+                return;
+            } catch (\TypeError $e) {
+                self::throwInvalidArgumentException($e->getMessage(), $e->getTrace(), 0, $propertyPath);
+                // It wasn't thrown in this class so rethrow it
+                throw $e;
+            }
+        }
+
         $propertyPath = $this->getPropertyPath($propertyPath);
 
         $zval = [