diff --git a/packages/ui/src/components/session-diff.ts b/packages/ui/src/components/session-diff.ts
index 88baeae489..a6ae23421f 100644
--- a/packages/ui/src/components/session-diff.ts
+++ b/packages/ui/src/components/session-diff.ts
@@ -36,7 +36,7 @@ export type ViewDiff = {
 const diffCacheLimit = 16
 // Legacy before/after payloads do not include a patch. Bound exact diffing so pathological
 // replacements cannot freeze the UI; oversized payloads still render as one coarse change hunk.
-const contentDiffMaxEditLength = 2_000
+const contentDiffMaxEditLength = 5_000
 const patchFileDiffCache = new Map<string, FileDiffMetadata>()
 const contentPatchCache: { file: string; before: string; after: string; value: PatchData }[] = []