diff --git a/src/harness/fourslash.ts b/src/harness/fourslash.ts
index 04fc21e60e0..fc8299f57e9 100644
--- a/src/harness/fourslash.ts
+++ b/src/harness/fourslash.ts
@@ -2352,7 +2352,7 @@ namespace FourSlash {
         private applyCodeActions(actions: ts.CodeAction[], index?: number): void {
             if (index === undefined) {
                 if (!(actions && actions.length === 1)) {
-                    this.raiseError(`Should find exactly one codefix, but ${actions ? actions.length : "none"} found.`);
+                    this.raiseError(`Should find exactly one codefix, but ${actions ? actions.length : "none"} found. ${actions ? actions.map(a => `"${a.description}"`).join(", ") : "" }`);
                 }
                 index = 0;
             }