diff --git a/source/src/main/java/one/nem/lacerta/source/database/dao/Library.java b/source/src/main/java/one/nem/lacerta/source/database/dao/LibraryDao.java
similarity index 61%
rename from source/src/main/java/one/nem/lacerta/source/database/dao/Library.java
rename to source/src/main/java/one/nem/lacerta/source/database/dao/LibraryDao.java
index 2bce89a0..ce86fdcc 100644
--- a/source/src/main/java/one/nem/lacerta/source/database/dao/Library.java
+++ b/source/src/main/java/one/nem/lacerta/source/database/dao/LibraryDao.java
@@ -1,4 +1,4 @@
 package one.nem.lacerta.source.database.dao;
 
-public interface Library {
+public interface LibraryDao {
 }
diff --git a/source/src/main/java/one/nem/lacerta/source/database/dao/Tag.java b/source/src/main/java/one/nem/lacerta/source/database/dao/TagDao.java
similarity index 64%
rename from source/src/main/java/one/nem/lacerta/source/database/dao/Tag.java
rename to source/src/main/java/one/nem/lacerta/source/database/dao/TagDao.java
index c3c2536e..a3598472 100644
--- a/source/src/main/java/one/nem/lacerta/source/database/dao/Tag.java
+++ b/source/src/main/java/one/nem/lacerta/source/database/dao/TagDao.java
@@ -1,4 +1,4 @@
 package one.nem.lacerta.source.database.dao;
 
-public interface Tag {
+public interface TagDao {
 }