diff --git a/packages/opencode/src/tool/edit.ts b/packages/opencode/src/tool/edit.ts
index c761801a..c35f8969 100644
--- a/packages/opencode/src/tool/edit.ts
+++ b/packages/opencode/src/tool/edit.ts
@@ -621,6 +621,6 @@ export function replace(content: string, oldString: string, newString: string, r
     throw new Error("oldString not found in content")
   }
   throw new Error(
-    "oldString found multiple times and requires more code context to uniquely identify the intended match",
+    "Found multiple matches for oldString. Include more surrounding code lines in oldString to uniquely identify which occurrence to replace.",
   )
 }