diff --git a/CHANGELOG.md b/CHANGELOG.md
index 73821003..5cbb3ce7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -42,6 +42,7 @@ Ref: https://keepachangelog.com/en/1.0.0/
 
 ### Bug Fixes
 * [\#83](https://github.com/line/lbm/pull/83) enable tests on CI
+* (app) [\#96](https://github.com/line/lbm/pull/96) fix the bug not setting `iavl-cache-size` value of the `app.toml`
 
 ### Improvements
 * [\#95](https://github.com/line/lbm/pull/95) apply the changes of lbm-sdk v0.46.0-rc8
diff --git a/cmd/lbm/cmd/root.go b/cmd/lbm/cmd/root.go
index 7cfa4ff8..487870df 100644
--- a/cmd/lbm/cmd/root.go
+++ b/cmd/lbm/cmd/root.go
@@ -285,6 +285,7 @@ func newApp(logger log.Logger, db dbm.DB, traceStore io.Writer, appOpts serverty
 		baseapp.SetMinRetainBlocks(cast.ToUint64(appOpts.Get(server.FlagMinRetainBlocks))),
 		baseapp.SetInterBlockCache(cache),
 		baseapp.SetIndexEvents(cast.ToStringSlice(appOpts.Get(server.FlagIndexEvents))),
+		baseapp.SetIAVLCacheSize(cast.ToInt(appOpts.Get(server.FlagIAVLCacheSize))),
 		baseapp.SetSnapshotStore(snapshotStore),
 		baseapp.SetSnapshotInterval(cast.ToUint64(appOpts.Get(server.FlagStateSyncSnapshotInterval))),
 		baseapp.SetSnapshotKeepRecent(cast.ToUint32(appOpts.Get(server.FlagStateSyncSnapshotKeepRecent))),