2 files changed, 17 insertions, 0 deletions
diff --git a/test/scaladoc/resources/SI_4287.scala b/test/scaladoc/resources/SI_4287.scala
new file mode 100644
index 0000000000..9846db466d
--- /dev/null
+++ b/test/scaladoc/resources/SI_4287.scala
@@ -0,0 +1,6 @@
+class ClassWithSugar(val x: Int = 123) {
+}
+
+class ClassWithoutSugar {
+  def this(x: Int = 456) = this()
+}
diff --git a/test/scaladoc/scala/html/HtmlFactoryTest.scala b/test/scaladoc/scala/html/HtmlFactoryTest.scala
index f3973fa7c9..45792056fc 100644
--- a/test/scaladoc/scala/html/HtmlFactoryTest.scala
+++ b/test/scaladoc/scala/html/HtmlFactoryTest.scala
@@ -353,4 +353,15 @@ object Test extends Properties("HtmlFactory") {
       case _ => false
     }
   }
+
+  property("Default arguments of synthesized constructor") = {
+    val files = createTemplates("SI_4287.scala")
+
+    files("ClassWithSugar.html") match {
+      case node: scala.xml.Node => {
+        node.toString.contains(">123<")
+      }
+      case _ => false
+    }
+  }
 }