1 files changed, 2 insertions, 2 deletions
diff --git a/src/library/scala/collection/package.scala b/src/library/scala/collection/package.scala
index f1eb50c5e0..13b6f22826 100644
--- a/src/library/scala/collection/package.scala
+++ b/src/library/scala/collection/package.scala
@@ -79,9 +79,9 @@ package object collection {
 
   private[collection] object DebugUtils {
     /* debug utils */
-    def buildString(closure: (String => Unit) => Unit): String = {
+    def buildString(closure: (Any => Unit) => Unit): String = {
       var output = ""
-      def appendln(s: String) = output += s + "\n"
+      def appendln(s: Any) = output += s + "\n"
       closure(appendln)
       output
     }