diff --git a/src/index.ts b/src/index.ts
index f48e33e..3470e93 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -338,6 +338,7 @@ export {
   getCommits,
   getDiff,
   getDiffSummary,
+  getMergeBase,
   getRepoRoot,
   matchesAnyPath,
   mergeFileSummariesByPath,