diff --git a/src/compiler/comments.ts b/src/compiler/comments.ts
index 2b51e937fad..b93b144bf01 100644
--- a/src/compiler/comments.ts
+++ b/src/compiler/comments.ts
@@ -140,12 +140,12 @@ namespace ts {
             function emitLeadingComments(range: TextRange, leadingComments: CommentRange[] = getLeadingCommentsToEmit(range)) {
                 emitNewLineBeforeLeadingComments(currentLineMap, writer, range, leadingComments);
 
-                // Leading comments are emitted at /*leading comment1 */space/*leading comment*/space
+                // Leading comments are emitted as `/*leading comment1 */space/*leading comment*/space`
                 emitComments(currentText, currentLineMap, writer, leadingComments, /*trailingSeparator*/ true, newLine, writeComment);
             }
 
             function emitTrailingComments(range: TextRange, trailingComments = getTrailingCommentsToEmit(range)) {
-                // trailing comments are emitted at space/*trailing comment1 */space/*trailing comment*/
+                // Trailing comments are emitted as `space/*trailing comment1 */space/*trailing comment*/`
                 emitComments(currentText, currentLineMap, writer, trailingComments, /*trailingSeparator*/ false, newLine, writeComment);
             }
 
@@ -182,7 +182,7 @@ namespace ts {
             // get the leading comments from detachedPos
             const pos = lastOrUndefined(detachedCommentsInfo).detachedCommentEndPos;
             const leadingComments = getLeadingCommentRanges(currentText, pos);
-            if (detachedCommentsInfo.length - 1) {
+            if (detachedCommentsInfo.length > 1) {
                 detachedCommentsInfo.pop();
             }
             else {
diff --git a/src/compiler/printer.ts b/src/compiler/printer.ts
index 0a707e335d1..84388d4fd88 100644
--- a/src/compiler/printer.ts
+++ b/src/compiler/printer.ts
@@ -76,8 +76,8 @@ function __export(m) {
 })`;
 
         const compilerOptions = host.getCompilerOptions();
-        const languageVersion = getLanguageVersion(compilerOptions);
-        const moduleKind = getModuleKind(compilerOptions);
+        const languageVersion = getEmitScriptTarget(compilerOptions);
+        const moduleKind = getEmitModuleKind(compilerOptions);
         const sourceMapDataList: SourceMapData[] = compilerOptions.sourceMap || compilerOptions.inlineSourceMap ? [] : undefined;
         const emitterDiagnostics = createDiagnosticCollection();
 
diff --git a/src/compiler/utilities.ts b/src/compiler/utilities.ts
index d8025b8d1b9..7026cafb065 100644
--- a/src/compiler/utilities.ts
+++ b/src/compiler/utilities.ts
@@ -102,22 +102,6 @@ namespace ts {
         return true;
     }
 
-    export function getLanguageVersion(compilerOptions: CompilerOptions) {
-        return compilerOptions.target || ScriptTarget.ES3;
-    }
-
-    export function getModuleKind(compilerOptions: CompilerOptions) {
-        if (compilerOptions.module) {
-            return compilerOptions.module;
-        }
-
-        if (getLanguageVersion(compilerOptions) === ScriptTarget.ES6) {
-            return ModuleKind.ES6;
-        }
-
-        return ModuleKind.None;
-    }
-
     export function hasResolvedModule(sourceFile: SourceFile, moduleNameText: string): boolean {
         return sourceFile.resolvedModules && hasProperty(sourceFile.resolvedModules, moduleNameText);
     }