diff --git a/src/dotty/tools/dotc/util/Positions.scala b/src/dotty/tools/dotc/util/Positions.scala
index 60274c71fd64..c3890cc9a463 100644
--- a/src/dotty/tools/dotc/util/Positions.scala
+++ b/src/dotty/tools/dotc/util/Positions.scala
@@ -158,7 +158,7 @@ object Positions {
     }
     def toPosition = {
       assert(isPosition)
-      if (this == NoCoord) NoPosition else Position(1 - encoding)
+      if (this == NoCoord) NoPosition else Position(-1 - encoding)
     }
   }
 
diff --git a/test/dotc/tests.scala b/test/dotc/tests.scala
index 468de7243cd2..db5fa85446b5 100644
--- a/test/dotc/tests.scala
+++ b/test/dotc/tests.scala
@@ -143,7 +143,7 @@ class tests extends CompilerTest {
   @Test def neg_badAuxConstr = compileFile(negDir, "badAuxConstr", xerrors = 2)
   @Test def neg_typetest = compileFile(negDir, "typetest", xerrors = 1)
   @Test def neg_t1569_failedAvoid = compileFile(negDir, "t1569-failedAvoid", xerrors = 1)
-  @Test def neg_clashes = compileFile(negDir, "clashes", xerrors = 3)
+  @Test def neg_clashes = compileFile(negDir, "clashes", xerrors = 2)
   @Test def neg_cycles = compileFile(negDir, "cycles", xerrors = 8)
   @Test def neg_boundspropagation = compileFile(negDir, "boundspropagation", xerrors = 5)
   @Test def neg_refinedSubtyping = compileFile(negDir, "refinedSubtyping", xerrors = 2)
diff --git a/tests/neg/clashes.scala b/tests/neg/clashes.scala
index 11354706daf9..6c051953d92c 100644
--- a/tests/neg/clashes.scala
+++ b/tests/neg/clashes.scala
@@ -1,6 +1,6 @@
 object Test {
   class C
-  type C
+  type C   // error
 }
 
-object Test
+object Test  // error
diff --git a/tests/neg/t0654.scala b/tests/neg/t0654.scala
deleted file mode 100644
index 0d0f2f7deae4..000000000000
--- a/tests/neg/t0654.scala
+++ /dev/null
@@ -1,5 +0,0 @@
-object Test {
-  class Foo[T]
-  type C[T] = Foo[_ <: T]   // error: parameter type T of type alias does not appear as type argument of the aliased class Foo
-  val a: C[AnyRef] = new Foo[AnyRef]
-}