diff --git a/build.sbt b/build.sbt
index 6f72940a..8ceb8f5f 100644
--- a/build.sbt
+++ b/build.sbt
@@ -230,11 +230,7 @@ lazy val nvdla = (project in file("generators/nvdla"))
   .settings(libraryDependencies ++= rocketLibDeps.value)
   .settings(commonSettings)
 
-lazy val iocell = Project(id = "iocell", base = file("./tools/barstools/") / "src")
-  .settings(
-    Compile / scalaSource := baseDirectory.value / "main" / "scala" / "barstools" / "iocell",
-    Compile / resourceDirectory := baseDirectory.value / "main" / "resources"
-  )
+lazy val iocell = Project(id = "iocell", base = file("./tools/barstools/") / "iocell")
   .settings(chiselSettings)
   .settings(commonSettings)
 
diff --git a/tools/barstools b/tools/barstools
index fe81afec..400ce780 160000
--- a/tools/barstools
+++ b/tools/barstools
@@ -1 +1 @@
-Subproject commit fe81afec14634316606a9dd10628c220d53bd256
+Subproject commit 400ce780a9b59a4a617e3ae9dbd0e97ca8e802ab