diff --git a/core/shared/src/main/scala-3/fs2/ChunkPlatform.scala b/core/shared/src/main/scala-3/fs2/ChunkPlatform.scala
index 1fb816e0e4..2d6be7db0e 100644
--- a/core/shared/src/main/scala-3/fs2/ChunkPlatform.scala
+++ b/core/shared/src/main/scala-3/fs2/ChunkPlatform.scala
@@ -86,7 +86,8 @@ private[fs2] trait ChunkCompanionPlatform extends ChunkCompanion213And3Compat {
       private[fs2] val ct: ClassTag[O]
   ) extends Chunk[O] {
     require(
-      offset >= 0 && offset <= values.size && length >= 0 && length <= values.size && offset + length <= values.size
+      offset >= 0 && offset <= values.size && length >= 0 && length <= values.size && offset + length <= values.size,
+      "IArraySlice out of bounds"
     )
 
     def size = length
diff --git a/core/shared/src/main/scala/fs2/Chunk.scala b/core/shared/src/main/scala/fs2/Chunk.scala
index 7e8dc2a830..376ad325e3 100644
--- a/core/shared/src/main/scala/fs2/Chunk.scala
+++ b/core/shared/src/main/scala/fs2/Chunk.scala
@@ -863,7 +863,8 @@ object Chunk
     // ClassTag(values.getClass.getComponentType) -- we only keep it for bincompat
 
     require(
-      offset >= 0 && offset <= values.size && length >= 0 && length <= values.size && offset + length <= values.size
+      offset >= 0 && offset <= values.size && length >= 0 && length <= values.size && offset + length <= values.size,
+      "ArraySlice out of bounds"
     )
 
     override protected def thisClassTag: ClassTag[Any] = ct.asInstanceOf[ClassTag[Any]]