diff --git a/compiler/util/src/org/jetbrains/kotlin/config/LanguageVersionSettings.kt b/compiler/util/src/org/jetbrains/kotlin/config/LanguageVersionSettings.kt
index 75487e5d187..aa644f2b3c3 100644
--- a/compiler/util/src/org/jetbrains/kotlin/config/LanguageVersionSettings.kt
+++ b/compiler/util/src/org/jetbrains/kotlin/config/LanguageVersionSettings.kt
@@ -276,6 +276,7 @@ enum class LanguageFeature(
     ValueClassesSecondaryConstructorWithBody(sinceVersion = KOTLIN_1_9, kind = UNSTABLE_FEATURE), // KT-55333
     NativeJsProhibitLateinitIsInitializedIntrinsicWithoutPrivateAccess(KOTLIN_1_9, kind = BUG_FIX), // KT-27002
     TakeIntoAccountEffectivelyFinalInMustBeInitializedCheck(KOTLIN_1_9, kind = OTHER), // KT-58587
+    ProhibitUsingNullableTypeParameterAgainstNotNullAnnotated(sinceVersion = KOTLIN_1_9), // KT-36770
 
     // End of 1.* language features --------------------------------------------------
 
@@ -295,11 +296,6 @@ enum class LanguageFeature(
 
     // End of 2.* language features --------------------------------------------------
 
-    // This feature effectively might be removed because we decided to disable it until K2 and there it will be unconditionally enabled.
-    // But we leave it here just to minimize the changes in K1 and also to allow use the feature once somebody needs it.
-    // The reason for it's being disabled is described at KT-55357
-    ProhibitUsingNullableTypeParameterAgainstNotNullAnnotated(sinceVersion = null), // KT-36770
-
     // Disabled for indefinite time. See KT-53751
     IgnoreNullabilityForErasedValueParameters(sinceVersion = null, kind = BUG_FIX),