diff --git a/dataforge-data/src/commonMain/kotlin/hep/dataforge/data/JoinAction.kt b/dataforge-data/src/commonMain/kotlin/hep/dataforge/data/JoinAction.kt
index 5f0f5845..4acae87f 100644
--- a/dataforge-data/src/commonMain/kotlin/hep/dataforge/data/JoinAction.kt
+++ b/dataforge-data/src/commonMain/kotlin/hep/dataforge/data/JoinAction.kt
@@ -29,7 +29,7 @@ class JoinGroupBuilder<T : Any, R : Any>(val actionMeta: Meta) {
      */
     fun byValue(tag: String, defaultTag: String = "@default", action: JoinGroup<T, R>.() -> Unit) {
         groupRules += { node ->
-            GroupBuilder.byValue(tag, defaultTag).invoke(node).map {
+            GroupRule.byValue(tag, defaultTag).invoke(node).map {
                 JoinGroup<T, R>(it.key, it.value).apply(action)
             }
         }
diff --git a/dataforge-io/src/commonMain/kotlin/hep/dataforge/io/Binary.kt b/dataforge-io/src/commonMain/kotlin/hep/dataforge/io/Binary.kt
index d8fe9ad7..67c962dd 100644
--- a/dataforge-io/src/commonMain/kotlin/hep/dataforge/io/Binary.kt
+++ b/dataforge-io/src/commonMain/kotlin/hep/dataforge/io/Binary.kt
@@ -25,6 +25,7 @@ interface Binary {
 /**
  * A [Binary] with addition random access functionality. It by default allows multiple [read] operations.
  */
+@ExperimentalUnsignedTypes
 interface RandomAccessBinary : Binary {
     /**
      * Read at most [size] of bytes starting at [from] offset from the beginning of the binary.
@@ -39,10 +40,12 @@ fun Binary.readAll(): ByteReadPacket = read {
     ByteReadPacket(this.readBytes())
 }
 
+@ExperimentalUnsignedTypes
 fun RandomAccessBinary.readPacket(from: UInt, size: UInt): ByteReadPacket = read(from, size) {
     ByteReadPacket(this.readBytes())
 }
 
+@ExperimentalUnsignedTypes
 object EmptyBinary : RandomAccessBinary {
 
     override val size: ULong = 0.toULong()
@@ -52,6 +55,7 @@ object EmptyBinary : RandomAccessBinary {
     }
 }
 
+@ExperimentalUnsignedTypes
 class ArrayBinary(val array: ByteArray) : RandomAccessBinary {
     override val size: ULong get() = array.size.toULong()