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-rw-r--r--src/dotty/tools/dotc/core/Flags.scala2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/dotty/tools/dotc/core/Flags.scala b/src/dotty/tools/dotc/core/Flags.scala
index f39f2bac6..161c8fde3 100644
--- a/src/dotty/tools/dotc/core/Flags.scala
+++ b/src/dotty/tools/dotc/core/Flags.scala
@@ -136,7 +136,7 @@ object Flags {
private final val FirstNotPickledFlag = 48
private final val MaxFlag = 63
- private var flagName = Array.fill(64, 2)("")
+ private val flagName = Array.fill(64, 2)("")
private def isDefinedAsFlag(idx: Int) = flagName(idx) exists (_.nonEmpty)