1 files changed, 4 insertions, 0 deletions
diff --git a/build.sbt b/build.sbt
index 6bb9c10166..da823d7df7 100644
--- a/build.sbt
+++ b/build.sbt
@@ -32,6 +32,7 @@
  *   - to modularize the Scala compiler or library further
  */
 
+import scala.build._
 import VersionUtil._
 
 // Scala dependencies:
@@ -1017,6 +1018,9 @@ commands += Command("partest")(_ => PartestUtil.partestParser((baseDirectory in
   ("test/it:testOnly -- " + parsed) :: state
 }
 
+// Watch the test files also so ~partest triggers on test case changes
+watchSources ++= PartestUtil.testFilePaths((baseDirectory in ThisBuild).value, (baseDirectory in ThisBuild).value / "test")
+
 // Add tab completion to scalac et al.
 commands ++= {
   val commands =