diff --git a/firebase-common/src/main/java/com/google/firebase/logger/Logger.kt b/firebase-common/src/main/java/com/google/firebase/logger/Logger.kt
index 284c7084def..c0520e6a630 100644
--- a/firebase-common/src/main/java/com/google/firebase/logger/Logger.kt
+++ b/firebase-common/src/main/java/com/google/firebase/logger/Logger.kt
@@ -25,7 +25,7 @@ import java.util.concurrent.ConcurrentHashMap
  *
  * @hide
  */
-sealed class Logger
+abstract class Logger
 private constructor(
   val tag: String,
   var enabled: Boolean,