diff --git a/build.gradle.kts b/build.gradle.kts
index c0651e0..16c3d1b 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -16,7 +16,7 @@ plugins {
 }
 
 group = "net.sergeych"
-version = "0.6.3-SNAPSHOT"
+version = "0.6.3"
 
 repositories {
     mavenCentral()
diff --git a/src/commonMain/kotlin/net/sergeych/kiloparsec/ExceptionWithCode.kt b/src/commonMain/kotlin/net/sergeych/kiloparsec/ExceptionWithCode.kt
index 29388c2..03226d1 100644
--- a/src/commonMain/kotlin/net/sergeych/kiloparsec/ExceptionWithCode.kt
+++ b/src/commonMain/kotlin/net/sergeych/kiloparsec/ExceptionWithCode.kt
@@ -10,6 +10,10 @@
 
 package net.sergeych.kiloparsec
 
+/**
+ * External errors wich needs to be encoded with a specific code
+ * should implement this interface so it will be serialized properly.
+ */
 interface ExceptionWithCode {
     val code: String
     val message: String?
diff --git a/src/commonMain/kotlin/net/sergeych/kiloparsec/KiloInterface.kt b/src/commonMain/kotlin/net/sergeych/kiloparsec/KiloInterface.kt
index f43593d..6f4352a 100644
--- a/src/commonMain/kotlin/net/sergeych/kiloparsec/KiloInterface.kt
+++ b/src/commonMain/kotlin/net/sergeych/kiloparsec/KiloInterface.kt
@@ -40,7 +40,7 @@ open class KiloInterface<S> : LocalInterface<KiloScope<S>>() {
         registerError { RemoteInterface.UnknownCommand(it) }
         registerError { RemoteInterface.InternalError(it) }
         registerError { RemoteInterface.ClosedException(it) }
-//        registerError { RemoteInterface.SecurityException(it) }
+        registerError { RemoteInterface.SecurityException(it) }
         registerError { RemoteInterface.InvalidDataException(it) }
         registerError { RemoteInterface.RemoteException(it) }
         registerError { IllegalStateException() }