diff --git a/src/harness/typeWriter.ts b/src/harness/typeWriter.ts
index 44532c6a59e..30ff313ca67 100644
--- a/src/harness/typeWriter.ts
+++ b/src/harness/typeWriter.ts
@@ -85,15 +85,17 @@ class TypeWriterWalker {
 
     private log(node: ts.Node, type: ts.Type): void {
         var actualPos = ts.skipTrivia(this.currentSourceFile.text, node.pos);
-        var lineAndCharacter = this.currentSourceFile.getOneBasedLineAndCharacterOfPosition(actualPos);
+        var lineAndCharacter = this.currentSourceFile.getZeroBasedLineAndCharacterOfPosition(actualPos);
         var sourceText = ts.getTextOfNodeFromSourceText(this.currentSourceFile.text, node);
         
         // If we got an unknown type, we temporarily want to fall back to just pretending the name
         // (source text) of the node is the type. This is to align with the old typeWriter to make
         // baseline comparisons easier. In the long term, we will want to just call typeToString
         this.results.push({
-            line: lineAndCharacter.line - 1,
-            column: lineAndCharacter.character,
+            line: lineAndCharacter.line,
+            // todo(cyrusn): Not sure why column is one-based for type-writer.  But I'm preserving 
+            // that behavior to prevent having a lot of baselines to fix up.
+            column: lineAndCharacter.character + 1,
             syntaxKind: node.kind,
             sourceText: sourceText,
             type: this.checker.typeToString(type, node.parent, ts.TypeFormatFlags.NoTruncation | ts.TypeFormatFlags.WriteOwnNameForAnyLike)