diff --git a/go/libraries/doltcore/dbfactory/file.go b/go/libraries/doltcore/dbfactory/file.go
index 13f1553e25..dd3515b5a3 100644
--- a/go/libraries/doltcore/dbfactory/file.go
+++ b/go/libraries/doltcore/dbfactory/file.go
@@ -152,8 +152,7 @@ func (fact FileFactory) CreateDB(ctx context.Context, nbf *types.NomsBinFormat,
 	var mmapArchiveIndexes bool
 	if params != nil {
 		_, useJournal = params[ChunkJournalParam]
-		mmapArchiveIndexesValue, mmapArchiveIndexesPresent := params[MMapArchiveIndexesParam]
-		mmapArchiveIndexes = mmapArchiveIndexesPresent && (mmapArchiveIndexesValue != false)
+		_, mmapArchiveIndexes = params[MMapArchiveIndexesParam]
 	}
 
 	var newGenSt *nbs.NomsBlockStore
diff --git a/go/libraries/doltcore/env/environment.go b/go/libraries/doltcore/env/environment.go
index 3069d1ec65..179251b8b5 100644
--- a/go/libraries/doltcore/env/environment.go
+++ b/go/libraries/doltcore/env/environment.go
@@ -215,7 +215,10 @@ func LoadDoltDB(ctx context.Context, fs filesys.Filesys, urlStr string, dEnv *Do
 			return
 		}
 
-		params := map[string]interface{}{dbfactory.MMapArchiveIndexesParam: mmapArchiveIndexes}
+		var params map[string]interface{}
+		if mmapArchiveIndexes {
+			params = map[string]interface{}{dbfactory.MMapArchiveIndexesParam: struct{}{}}
+		}
 		ddb, dbLoadErr := doltdb.LoadDoltDBWithParams(ctx, types.Format_Default, urlStr, fs, params)
 		dEnv.doltDB = ddb
 		dEnv.DBLoadError = dbLoadErr