diff --git a/tests/src/test/resources/scala/tools/nsc/effects/multi/ExceptionsIO-files/exceptionsIoNeg.check b/tests/src/test/resources/scala/tools/nsc/effects/multi/ExceptionsIo-files/exceptionsIoNeg.check
similarity index 100%
rename from tests/src/test/resources/scala/tools/nsc/effects/multi/ExceptionsIO-files/exceptionsIoNeg.check
rename to tests/src/test/resources/scala/tools/nsc/effects/multi/ExceptionsIo-files/exceptionsIoNeg.check
diff --git a/tests/src/test/scala/scala/tools/nsc/effects/multi/ExceptionsIO.scala b/tests/src/test/scala/scala/tools/nsc/effects/multi/ExceptionsIo.scala
similarity index 67%
rename from tests/src/test/scala/scala/tools/nsc/effects/multi/ExceptionsIO.scala
rename to tests/src/test/scala/scala/tools/nsc/effects/multi/ExceptionsIo.scala
index f2970c1..b01d3a3 100644
--- a/tests/src/test/scala/scala/tools/nsc/effects/multi/ExceptionsIO.scala
+++ b/tests/src/test/scala/scala/tools/nsc/effects/multi/ExceptionsIo.scala
@@ -1,6 +1,6 @@
 package scala.tools.nsc.effects
 package multi
 
-class ExceptionsIO extends PosNegSuite("exceptions:io") {
+class ExceptionsIo extends PosNegSuite("exceptions:io") {
 //  override val updateCheck: List[String] = List("exceptionsIoNeg")
 }
diff --git a/tests/src/test/scala/scala/tools/nsc/effects/multi/ExceptionsIoPurity.scala b/tests/src/test/scala/scala/tools/nsc/effects/multi/ExceptionsIoPurity.scala
new file mode 100644
index 0000000..9620a34
--- /dev/null
+++ b/tests/src/test/scala/scala/tools/nsc/effects/multi/ExceptionsIoPurity.scala
@@ -0,0 +1,5 @@
+package scala.tools.nsc.effects.multi
+
+class ExceptionsIoPurity {
+
+}
\ No newline at end of file