diff --git a/modules/openapi-generator/src/main/resources/php-symfony/serialization/JmsSerializer.mustache b/modules/openapi-generator/src/main/resources/php-symfony/serialization/JmsSerializer.mustache
index 444eef6760e..5bf4fe3b66e 100644
--- a/modules/openapi-generator/src/main/resources/php-symfony/serialization/JmsSerializer.mustache
+++ b/modules/openapi-generator/src/main/resources/php-symfony/serialization/JmsSerializer.mustache
@@ -75,6 +75,13 @@ class JmsSerializer implements SerializerInterface
                     return $data + 0;
                 }
 
+                break;
+            case 'double':
+            case 'float':
+                if (is_float($data) || is_numeric($data)) {
+                    return (float) $data;
+                }
+
                 break;
             case 'string':
                 break;
diff --git a/samples/server/petstore/php-symfony/SymfonyBundle-php/Service/JmsSerializer.php b/samples/server/petstore/php-symfony/SymfonyBundle-php/Service/JmsSerializer.php
index 379e7faf32a..86a81f01a6b 100644
--- a/samples/server/petstore/php-symfony/SymfonyBundle-php/Service/JmsSerializer.php
+++ b/samples/server/petstore/php-symfony/SymfonyBundle-php/Service/JmsSerializer.php
@@ -75,6 +75,13 @@ class JmsSerializer implements SerializerInterface
                     return $data + 0;
                 }
 
+                break;
+            case 'double':
+            case 'float':
+                if (is_float($data) || is_numeric($data)) {
+                    return (float) $data;
+                }
+
                 break;
             case 'string':
                 break;