diff --git a/source/dyaml/emitter.d b/source/dyaml/emitter.d
index d53c668..9f8e991 100644
--- a/source/dyaml/emitter.d
+++ b/source/dyaml/emitter.d
@@ -18,7 +18,6 @@ import std.conv;
 import std.exception;
 import std.format;
 import std.range;
-//import std.stream;
 import std.string;
 import std.system;
 import std.typecons;
diff --git a/source/dyaml/testcommon.d b/source/dyaml/testcommon.d
index 61e5c67..d64e282 100644
--- a/source/dyaml/testcommon.d
+++ b/source/dyaml/testcommon.d
@@ -11,7 +11,6 @@ version(unittest)
 
 public import std.conv;
 public import std.stdio;
-//public import std.stream;
 public import dyaml.all;
 
 import core.exception;
@@ -24,8 +23,6 @@ import std.typecons;
 
 package:
 
-//alias std.stream.File File;
-
 /**
  * Run an unittest.
  *
diff --git a/source/dyaml/testrepresenter.d b/source/dyaml/testrepresenter.d
index 5690110..c5e7717 100644
--- a/source/dyaml/testrepresenter.d
+++ b/source/dyaml/testrepresenter.d
@@ -48,7 +48,7 @@ void testRepresenterTypes(bool verbose, string codeFilename)
             }
         }
 
-		import dyaml.stream;
+        import dyaml.stream;
 
         auto emitStream  = new YMemoryStream;
         auto representer = new Representer;