diff --git a/packages/opencode/src/acp/agent.ts b/packages/opencode/src/acp/agent.ts
index 301bfe319..ae6f6fcc2 100644
--- a/packages/opencode/src/acp/agent.ts
+++ b/packages/opencode/src/acp/agent.ts
@@ -229,7 +229,7 @@ export namespace ACP {
                 const filepath = typeof metadata["filepath"] === "string" ? metadata["filepath"] : ""
                 const diff = typeof metadata["diff"] === "string" ? metadata["diff"] : ""
                 const file = Bun.file(filepath)
-                const content = await file.exists() ? await file.text() : ""
+                const content = (await file.exists()) ? await file.text() : ""
                 const newContent = getNewContent(content, diff)
 
                 if (newContent) {