diff --git a/idea/idea-frontend-api/src/org/jetbrains/kotlin/idea/frontend/api/symbols/markers/KtSymbolWithModality.kt b/idea/idea-frontend-api/src/org/jetbrains/kotlin/idea/frontend/api/symbols/markers/KtSymbolWithModality.kt
index 9dfc6b699c6..abba9a00adc 100644
--- a/idea/idea-frontend-api/src/org/jetbrains/kotlin/idea/frontend/api/symbols/markers/KtSymbolWithModality.kt
+++ b/idea/idea-frontend-api/src/org/jetbrains/kotlin/idea/frontend/api/symbols/markers/KtSymbolWithModality.kt
@@ -17,5 +17,4 @@ sealed class KtCommonSymbolModality : KtSymbolModality() {
     object FINAL : KtCommonSymbolModality()
     object ABSTRACT : KtCommonSymbolModality()
     object OPEN : KtCommonSymbolModality()
-    object UNKNOWN : KtCommonSymbolModality()
 }
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