diff --git a/src/harness/harness.ts b/src/harness/harness.ts
index c4032c2d600..4611b90e80e 100644
--- a/src/harness/harness.ts
+++ b/src/harness/harness.ts
@@ -557,7 +557,8 @@ module Harness {
                 getDefaultLibFilename: () => 'lib.d.ts',
                 writeFile: writeFile,
                 getCanonicalFileName: ts.getCanonicalFileName,
-                useCaseSensitiveFileNames: () => sys.useCaseSensitiveFileNames
+                useCaseSensitiveFileNames: () => sys.useCaseSensitiveFileNames,
+                getNewLine: ()=> sys.newLine
             }
         }
 
diff --git a/src/harness/projectsRunner.ts b/src/harness/projectsRunner.ts
index f7d2ec22cd2..f3fc650e55c 100644
--- a/src/harness/projectsRunner.ts
+++ b/src/harness/projectsRunner.ts
@@ -223,7 +223,8 @@ class ProjectRunner extends RunnerBase {
                     writeFile: writeFile,
                     getCurrentDirectory: getCurrentDirectory,
                     getCanonicalFileName: ts.getCanonicalFileName,
-                    useCaseSensitiveFileNames: () => sys.useCaseSensitiveFileNames
+                    useCaseSensitiveFileNames: () => sys.useCaseSensitiveFileNames,
+                    getNewLine:()=> sys.newLine
                 };
             }
 
diff --git a/src/harness/rwcRunner.ts b/src/harness/rwcRunner.ts
index e4038eb76e6..576b06e3435 100644
--- a/src/harness/rwcRunner.ts
+++ b/src/harness/rwcRunner.ts
@@ -112,7 +112,8 @@ module RWC {
                         getDefaultLibFilename: () => libPath,
                         writeFile: (fn, contents) => emitterIOHost.writeFile(fn, contents, false),
                         getCanonicalFileName: ts.getCanonicalFileName,
-                        useCaseSensitiveFileNames: () => sys.useCaseSensitiveFileNames
+                        useCaseSensitiveFileNames: () => sys.useCaseSensitiveFileNames,
+                        getNewLine: () => sys.newLine
                     };
 
                     var resolvedProgram = ts.createProgram(opts.filenames, opts.options, host);