diff --git a/NEWS b/NEWS
index 46b14992797..61a71f04028 100644
--- a/NEWS
+++ b/NEWS
@@ -11,6 +11,10 @@ PHP                                                                        NEWS
   . Add support for CURLINFO_CONN_ID in curl_getinfo() (thecaliskan)
   . Add support for CURLINFO_QUEUE_TIME_T in curl_getinfo() (thecaliskan)
 
+- Reflection:
+  . Fixed bug GH-19187 (ReflectionNamedType::getName() prints nullable type when
+    retrieved from ReflectionProperty::getSettableType()). (ilutov)
+
 - Session:
   . Fixed GH-19197: build broken with ZEND_STRL usage with memcpy
     when implemented as macro. (David Carlier)
diff --git a/ext/reflection/php_reflection.c b/ext/reflection/php_reflection.c
index 74dcd772dc7..b12bf00fd55 100644
--- a/ext/reflection/php_reflection.c
+++ b/ext/reflection/php_reflection.c
@@ -6403,7 +6403,7 @@ ZEND_METHOD(ReflectionProperty, getSettableType)
 	/* Get-only virtual property can never be written to. */
 	if (prop->hooks && (prop->flags & ZEND_ACC_VIRTUAL) && !prop->hooks[ZEND_PROPERTY_HOOK_SET]) {
 		zend_type never_type = ZEND_TYPE_INIT_CODE(IS_NEVER, 0, 0);
-		reflection_type_factory(never_type, return_value, 0);
+		reflection_type_factory(never_type, return_value, 1);
 		return;
 	}
 
@@ -6413,7 +6413,7 @@ ZEND_METHOD(ReflectionProperty, getSettableType)
 		if (!ZEND_TYPE_IS_SET(arg_info->type)) {
 			RETURN_NULL();
 		}
-		reflection_type_factory(arg_info->type, return_value, 0);
+		reflection_type_factory(arg_info->type, return_value, 1);
 		return;
 	}
 
@@ -6421,7 +6421,7 @@ ZEND_METHOD(ReflectionProperty, getSettableType)
 	if (!ZEND_TYPE_IS_SET(ref->prop->type)) {
 		RETURN_NULL();
 	}
-	reflection_type_factory(ref->prop->type, return_value, 0);
+	reflection_type_factory(ref->prop->type, return_value, 1);
 }
 
 /* {{{ Returns whether property has a type */
diff --git a/ext/reflection/tests/gh19187.phpt b/ext/reflection/tests/gh19187.phpt
new file mode 100644
index 00000000000..35a684aa6af
--- /dev/null
+++ b/ext/reflection/tests/gh19187.phpt
@@ -0,0 +1,56 @@
+--TEST--
+GH-19187: ReflectionNamedType::getName() should not include nullable type
+--FILE--
+<?php
+
+class C {
+    public string|null $a {
+        set => $value;
+    }
+    public string|null $b {
+        set(string|null $value) => $value;
+    }
+    public string|null $c {
+        get => $this->c;
+    }
+}
+
+foreach ((new ReflectionClass(C::class))->getProperties() as $r) {
+    $type = $r->getType();
+    echo $type, "\n";
+    echo $type->getName(), "\n";
+    var_dump($type->allowsNull());
+    echo "\n";
+
+    $settableType = $r->getSettableType();
+    echo $settableType, "\n";
+    echo $settableType->getName(), "\n";
+    var_dump($settableType->allowsNull());
+    echo "\n";
+}
+
+?>
+--EXPECT--
+?string
+string
+bool(true)
+
+?string
+string
+bool(true)
+
+?string
+string
+bool(true)
+
+?string
+string
+bool(true)
+
+?string
+string
+bool(true)
+
+?string
+string
+bool(true)