diff --git a/MIGRATION.md b/MIGRATION.md
index eeeef930d..8435b3448 100644
--- a/MIGRATION.md
+++ b/MIGRATION.md
@@ -13,3 +13,4 @@ Migration notes
 - Renames early command feature from `--<command>` to `early(<command>)`.
 - Log options `-error`, `-warn`, `-info`, `-debug` are added as shorthand for `"early(error)"` etc.
 - `sbt.Process` and `sbt.ProcessExtra` are gone. Use `scala.sys.process` instead.
+- `incOptions.value.withNameHashing(...)` option is removed.
diff --git a/sbt/src/sbt-test/source-dependencies/backtick-quoted-names/build.sbt b/sbt/src/sbt-test/source-dependencies/backtick-quoted-names/build.sbt
deleted file mode 100644
index 8a38ef414..000000000
--- a/sbt/src/sbt-test/source-dependencies/backtick-quoted-names/build.sbt
+++ /dev/null
@@ -1 +0,0 @@
-incOptions := incOptions.value.withNameHashing(true)
diff --git a/sbt/src/sbt-test/source-dependencies/macro-annotation/build.sbt b/sbt/src/sbt-test/source-dependencies/macro-annotation/build.sbt
index 4243856d5..12a8459cc 100644
--- a/sbt/src/sbt-test/source-dependencies/macro-annotation/build.sbt
+++ b/sbt/src/sbt-test/source-dependencies/macro-annotation/build.sbt
@@ -5,8 +5,7 @@ val commonSettings = Seq(
   scalaVersion := "2.11.4",
   resolvers += Resolver.sonatypeRepo("snapshots"),
   resolvers += Resolver.sonatypeRepo("releases"),
-  addCompilerPlugin("org.scalamacros" % "paradise" % paradiseVersion cross CrossVersion.full),
-  incOptions := incOptions.value.withNameHashing(true)
+  addCompilerPlugin("org.scalamacros" % "paradise" % paradiseVersion cross CrossVersion.full)
 )
 
 lazy val root = (project in file(".")).
diff --git a/sbt/src/sbt-test/source-dependencies/macro/build.sbt b/sbt/src/sbt-test/source-dependencies/macro/build.sbt
index 1e81806a5..264dd3d57 100644
--- a/sbt/src/sbt-test/source-dependencies/macro/build.sbt
+++ b/sbt/src/sbt-test/source-dependencies/macro/build.sbt
@@ -1,7 +1,6 @@
 val defaultSettings = Seq(
   scalaVersion := "2.10.6",
-  libraryDependencies += scalaVersion("org.scala-lang" % "scala-reflect" % _ ).value //,
-  //incOptions := incOptions.value.withNameHashing(true)
+  libraryDependencies += scalaVersion("org.scala-lang" % "scala-reflect" % _ ).value
 )
 
 lazy val root = (project in file(".")).
diff --git a/sbt/src/sbt-test/source-dependencies/same-file-used-names/build.sbt b/sbt/src/sbt-test/source-dependencies/same-file-used-names/build.sbt
deleted file mode 100644
index 8a38ef414..000000000
--- a/sbt/src/sbt-test/source-dependencies/same-file-used-names/build.sbt
+++ /dev/null
@@ -1 +0,0 @@
-incOptions := incOptions.value.withNameHashing(true)
diff --git a/sbt/src/sbt-test/source-dependencies/type-alias/build.sbt b/sbt/src/sbt-test/source-dependencies/type-alias/build.sbt
index c5a1099aa..00edfde1d 100644
--- a/sbt/src/sbt-test/source-dependencies/type-alias/build.sbt
+++ b/sbt/src/sbt-test/source-dependencies/type-alias/build.sbt
@@ -1,3 +1 @@
 logLevel in compile := Level.Debug
-
-incOptions := incOptions.value.withNameHashing(true)