diff --git a/compiler/src/dotty/tools/dotc/parsing/Scanners.scala b/compiler/src/dotty/tools/dotc/parsing/Scanners.scala
index f9fc4158c677..c83882829748 100644
--- a/compiler/src/dotty/tools/dotc/parsing/Scanners.scala
+++ b/compiler/src/dotty/tools/dotc/parsing/Scanners.scala
@@ -528,7 +528,7 @@ object Scanners {
         case r: Indented =>
           indentIsSignificant = indentSyntax
           lastWidth = r.width
-          newlineIsSeparating = lastWidth <= nextWidth
+          newlineIsSeparating = lastWidth <= nextWidth || r.isOutermost
           indentPrefix = r.prefix
         case r: InBraces =>
           indentIsSignificant = indentSyntax
diff --git a/tests/pos/i8606.scala b/tests/pos/i8606.scala
new file mode 100644
index 000000000000..f1e13da30c36
--- /dev/null
+++ b/tests/pos/i8606.scala
@@ -0,0 +1,2 @@
+ class A {}
+@FunctionalInterface class B
\ No newline at end of file