diff --git a/src/harness/fourslash.ts b/src/harness/fourslash.ts
index 434a3981461a6..587bed813f115 100644
--- a/src/harness/fourslash.ts
+++ b/src/harness/fourslash.ts
@@ -2337,7 +2337,7 @@ namespace FourSlash {
                     continue;
                 }
 
-                const newActions = this.languageService.getCodeFixesAtPosition(fileName, diagnostic.start, diagnostic.length, [diagnostic.code], this.formatCodeSettings);
+                const newActions = this.languageService.getCodeFixesAtPosition(fileName, diagnostic.start, diagnostic.start + diagnostic.length, [diagnostic.code], this.formatCodeSettings);
                 if (newActions && newActions.length) {
                     actions = actions ? actions.concat(newActions) : newActions;
                 }
diff --git a/src/services/services.ts b/src/services/services.ts
index 759de900b848a..be17a35d3ed82 100644
--- a/src/services/services.ts
+++ b/src/services/services.ts
@@ -1768,7 +1768,7 @@ namespace ts {
         function getCodeFixesAtPosition(fileName: string, start: number, end: number, errorCodes: number[], formatOptions: FormatCodeSettings): CodeAction[] {
             synchronizeHostData();
             const sourceFile = getValidSourceFile(fileName);
-            const span = { start, length: end - start };
+            const span = createTextSpanFromBounds(start, end);
             const newLineCharacter = getNewLineOrDefaultFromHost(host);
 
             let allFixes: CodeAction[] = [];