diff --git a/modules/openapi-generator/src/main/resources/php-symfony/model_variables.mustache b/modules/openapi-generator/src/main/resources/php-symfony/model_variables.mustache
index 705bf09e370c..38959f360eb2 100644
--- a/modules/openapi-generator/src/main/resources/php-symfony/model_variables.mustache
+++ b/modules/openapi-generator/src/main/resources/php-symfony/model_variables.mustache
@@ -26,9 +26,16 @@
      *   @Assert\Type("{{dataType}}")
     {{/items}}
      * })
+     {{#isMapContainer}}
+     {{#items}}
+     * @Type("array<string, {{dataType}}>")
+     {{/items}}
+     {{/isMapContainer}}
+     {{^isMapContainer}}
      {{#items}}
      * @Type("array<{{dataType}}>")
      {{/items}}
+     {{/isMapContainer}}
 {{/isContainer}}
 {{^isContainer}}
     {{#isDate}}