diff --git a/src/JsonSchema/Generator/ModelGenerator.php b/src/JsonSchema/Generator/ModelGenerator.php
index 922d39f4f0..476dd7120a 100644
--- a/src/JsonSchema/Generator/ModelGenerator.php
+++ b/src/JsonSchema/Generator/ModelGenerator.php
@@ -89,9 +89,7 @@ protected function doCreateClassMethods(ClassGuess $classGuess, Property $proper
     {
         $methods = [];
         $methods[] = $this->createGetter($property, $namespace, $required);
-        if (!$property->isReadOnly()) {
-            $methods[] = $this->createSetter($property, $namespace, $required);
-        }
+        $methods[] = $this->createSetter($property, $namespace, $required);
 
         return $methods;
     }
diff --git a/src/OpenApi/Generator/ModelGenerator.php b/src/OpenApi/Generator/ModelGenerator.php
index 78339e19db..9b61b9e7b5 100644
--- a/src/OpenApi/Generator/ModelGenerator.php
+++ b/src/OpenApi/Generator/ModelGenerator.php
@@ -18,9 +18,7 @@ protected function doCreateClassMethods(BaseClassGuess $classGuess, Property $pr
     {
         $methods = [];
         $methods[] = $this->createGetter($property, $namespace, $required);
-        if (!$property->isReadOnly()) {
-            $methods[] = $this->createSetter($property, $namespace, $required, $classGuess instanceof MultipleClass ? false : true);
-        }
+        $methods[] = $this->createSetter($property, $namespace, $required, $classGuess instanceof MultipleClass ? false : true);
 
         return $methods;
     }