diff --git a/src/Normalizer/NetworkSettingsNormalizer.php b/src/Normalizer/NetworkSettingsNormalizer.php
index 6d82a9e6..55b517b2 100644
--- a/src/Normalizer/NetworkSettingsNormalizer.php
+++ b/src/Normalizer/NetworkSettingsNormalizer.php
@@ -57,8 +57,12 @@ public function denormalize($data, $class, $format = null, array $context = [])
             $values = new \ArrayObject([], \ArrayObject::ARRAY_AS_PROPS);
             foreach ($data->{'Ports'} as $key => $value) {
                 $values_1 = [];
-                foreach ($value as $value_1) {
-                    $values_1[] = $this->denormalizer->denormalize($value_1, 'Docker\\API\\Model\\PortBinding', 'json', $context);
+                if (is_iterable($value)){
+                    foreach ($value as $value_1) {
+                        $values_1[] = $this->denormalizer->denormalize($value_1, 'Docker\\API\\Model\\PortBinding', 'json', $context);
+                    }
+                } else {
+                    $values_1[] = $this->denormalizer->denormalize(null, 'Docker\\API\\Model\\PortBinding', 'json', $context);
                 }
                 $values[$key] = $values_1;
             }