diff --git a/common/src/main/java/dev/lucasnlm/antimine/common/level/database/converters/DifficultyConverter.kt b/common/src/main/java/dev/lucasnlm/antimine/common/level/database/converters/DifficultyConverter.kt
index c55569cc..06809423 100644
--- a/common/src/main/java/dev/lucasnlm/antimine/common/level/database/converters/DifficultyConverter.kt
+++ b/common/src/main/java/dev/lucasnlm/antimine/common/level/database/converters/DifficultyConverter.kt
@@ -12,6 +12,7 @@ class DifficultyConverter {
             1 -> Difficulty.Beginner
             2 -> Difficulty.Intermediate
             3 -> Difficulty.Expert
+            4 -> Difficulty.Custom
             else -> throw IllegalArgumentException("Could not recognize Difficulty")
         }
 
diff --git a/common/src/test/java/dev/lucasnlm/antimine/common/level/database/converters/DifficultyConverterTest.kt b/common/src/test/java/dev/lucasnlm/antimine/common/level/database/converters/DifficultyConverterTest.kt
index 2d35ebee..5650e4e3 100644
--- a/common/src/test/java/dev/lucasnlm/antimine/common/level/database/converters/DifficultyConverterTest.kt
+++ b/common/src/test/java/dev/lucasnlm/antimine/common/level/database/converters/DifficultyConverterTest.kt
@@ -13,6 +13,7 @@ class DifficultyConverterTest {
         assertEquals(converter.toDifficulty(1), Difficulty.Beginner)
         assertEquals(converter.toDifficulty(2), Difficulty.Intermediate)
         assertEquals(converter.toDifficulty(3), Difficulty.Expert)
+        assertEquals(converter.toDifficulty(4), Difficulty.Custom)
     }
 
     @Test(expected = IllegalArgumentException::class)
@@ -28,5 +29,6 @@ class DifficultyConverterTest {
         assertEquals(converter.toInteger(Difficulty.Beginner), 1)
         assertEquals(converter.toInteger(Difficulty.Intermediate), 2)
         assertEquals(converter.toInteger(Difficulty.Expert), 3)
+        assertEquals(converter.toInteger(Difficulty.Custom), 4)
     }
 }