diff --git a/convert.go b/convert.go
index 5a80ddb..187b35f 100644
--- a/convert.go
+++ b/convert.go
@@ -29,8 +29,8 @@ func ConvertStringsToObjectIDs(strValues []string) []primitive.ObjectID {
 
 // ConvertStringToObjectID ...
 func ConvertStringToObjectID(id string) primitive.ObjectID {
-	ID, _ := primitive.ObjectIDFromHex(id)
-	return ID
+	objID, _ := primitive.ObjectIDFromHex(id)
+	return objID
 }
 
 // SortObjectId ...