diff --git a/shared/src/main/scala/io/kaitai/struct/NimClassCompiler.scala b/shared/src/main/scala/io/kaitai/struct/NimClassCompiler.scala
index 07da3f25b..8155b4304 100644
--- a/shared/src/main/scala/io/kaitai/struct/NimClassCompiler.scala
+++ b/shared/src/main/scala/io/kaitai/struct/NimClassCompiler.scala
@@ -1,7 +1,6 @@
 package io.kaitai.struct
 
 import io.kaitai.struct.CompileLog.FileSuccess
-import io.kaitai.struct.datatype.DataType.{KaitaiStreamType, UserTypeInstream, CalcUserType}
 import io.kaitai.struct.datatype.{Endianness, FixedEndian, InheritedEndian, LittleEndian, BigEndian, CalcEndian}
 import io.kaitai.struct.format._
 import io.kaitai.struct.languages.NimCompiler