diff --git a/compiler/src/dotty/tools/dotc/parsing/Parsers.scala b/compiler/src/dotty/tools/dotc/parsing/Parsers.scala
index bd5159a60931..219d60d83dab 100644
--- a/compiler/src/dotty/tools/dotc/parsing/Parsers.scala
+++ b/compiler/src/dotty/tools/dotc/parsing/Parsers.scala
@@ -2725,7 +2725,7 @@ object Parsers {
       atSpan(startOffset(pat), accept(LARROW)) {
         val checkMode =
           if casePat then GenCheckMode.FilterAlways
-          else if sourceVersion.isAtLeast(`future`) then GenCheckMode.Check
+          else if sourceVersion.isAtLeast(`3.4`) then GenCheckMode.Check
           else if sourceVersion.isAtLeast(`3.2`) then GenCheckMode.CheckAndFilter
           else GenCheckMode.FilterNow  // filter on source version < 3.2, for backward compat
         GenFrom(pat, subExpr(), checkMode)