diff --git a/android/uhabits-android/src/main/java/org/isoron/uhabits/utils/DatabaseUtils.java b/android/uhabits-android/src/main/java/org/isoron/uhabits/utils/DatabaseUtils.java
index 831680902..e3eb97a43 100644
--- a/android/uhabits-android/src/main/java/org/isoron/uhabits/utils/DatabaseUtils.java
+++ b/android/uhabits-android/src/main/java/org/isoron/uhabits/utils/DatabaseUtils.java
@@ -27,13 +27,12 @@ import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 
 import org.isoron.uhabits.*;
-import org.isoron.uhabits.core.Config;
 import org.isoron.uhabits.core.utils.*;
 
 import java.io.*;
 import java.text.*;
 
-import static org.isoron.uhabits.core.Config.DATABASE_VERSION;
+import static org.isoron.uhabits.core.ConstantsKt.*;
 
 public abstract class DatabaseUtils
 {
@@ -55,7 +54,7 @@ public abstract class DatabaseUtils
     @NonNull
     public static String getDatabaseFilename()
     {
-        String databaseFilename = Config.DATABASE_FILENAME;
+        String databaseFilename = DATABASE_FILENAME;
         if (HabitsApplication.Companion.isTestMode()) databaseFilename = "test.db";
         return databaseFilename;
     }
diff --git a/android/uhabits-core/src/main/java/org/isoron/uhabits/core/Config.java b/android/uhabits-core/src/main/java/org/isoron/uhabits/core/Constants.kt
similarity index 82%
rename from android/uhabits-core/src/main/java/org/isoron/uhabits/core/Config.java
rename to android/uhabits-core/src/main/java/org/isoron/uhabits/core/Constants.kt
index 1a5383cee..0f9eaede1 100644
--- a/android/uhabits-core/src/main/java/org/isoron/uhabits/core/Config.java
+++ b/android/uhabits-core/src/main/java/org/isoron/uhabits/core/Constants.kt
@@ -16,11 +16,8 @@
  * You should have received a copy of the GNU General Public License along
  * with this program. If not, see <http://www.gnu.org/licenses/>.
  */
+package org.isoron.uhabits.core
 
-package org.isoron.uhabits.core;
+const val DATABASE_FILENAME = "uhabits.db"
 
-public class Config
-{
-    public static final String DATABASE_FILENAME = "uhabits.db";
-    public static int DATABASE_VERSION = 24;
-}
+const val DATABASE_VERSION = 24
diff --git a/android/uhabits-core/src/main/java/org/isoron/uhabits/core/io/LoopDBImporter.java b/android/uhabits-core/src/main/java/org/isoron/uhabits/core/io/LoopDBImporter.java
index 4e3f24b60..eb1639d28 100644
--- a/android/uhabits-core/src/main/java/org/isoron/uhabits/core/io/LoopDBImporter.java
+++ b/android/uhabits-core/src/main/java/org/isoron/uhabits/core/io/LoopDBImporter.java
@@ -32,7 +32,7 @@ import java.util.*;
 
 import javax.inject.*;
 
-import static org.isoron.uhabits.core.Config.*;
+import static org.isoron.uhabits.core.ConstantsKt.*;
 
 /**
  * Class that imports data from database files exported by Loop Habit Tracker.
@@ -68,7 +68,7 @@ public class LoopDBImporter extends AbstractImporter
         boolean canHandle = true;
 
         Cursor c = db.query("select count(*) from SQLITE_MASTER " +
-                            "where name='Habits' or name='Repetitions'");
+                "where name='Habits' or name='Repetitions'");
 
         if (!c.moveToNext() || c.getInt(0) != 2)
         {
@@ -132,7 +132,7 @@ public class LoopDBImporter extends AbstractImporter
             {
                 Timestamp t = new Timestamp(r.timestamp);
                 Repetition rep = habit.getRepetitions().getByTimestamp(t);
-                if(rep == null || rep.getValue() != r.value)
+                if (rep == null || rep.getValue() != r.value)
                     new CreateRepetitionCommand(habitList, habit, t, r.value).execute();
             }
         }
diff --git a/android/uhabits-core/src/test/java/org/isoron/uhabits/core/BaseUnitTest.java b/android/uhabits-core/src/test/java/org/isoron/uhabits/core/BaseUnitTest.java
index 7e9d6e813..46188e1a2 100644
--- a/android/uhabits-core/src/test/java/org/isoron/uhabits/core/BaseUnitTest.java
+++ b/android/uhabits-core/src/test/java/org/isoron/uhabits/core/BaseUnitTest.java
@@ -38,6 +38,7 @@ import java.io.*;
 import java.sql.*;
 import java.util.*;
 
+import static org.isoron.uhabits.core.ConstantsKt.*;
 import static org.mockito.Mockito.*;
 
 @RunWith(MockitoJUnitRunner.class)
@@ -127,7 +128,7 @@ public class BaseUnitTest
                 DriverManager.getConnection("jdbc:sqlite::memory:"));
             db.execute("pragma user_version=8;");
             MigrationHelper helper = new MigrationHelper(db);
-            helper.migrateTo(Config.DATABASE_VERSION);
+            helper.migrateTo(DATABASE_VERSION);
             return db;
         }
         catch (SQLException e)