diff --git a/analysis/analysis-api/src/org/jetbrains/kotlin/analysis/api/symbols/KtCallableSymbol.kt b/analysis/analysis-api/src/org/jetbrains/kotlin/analysis/api/symbols/KtCallableSymbol.kt
index c7c1b3791a0..b387de70690 100644
--- a/analysis/analysis-api/src/org/jetbrains/kotlin/analysis/api/symbols/KtCallableSymbol.kt
+++ b/analysis/analysis-api/src/org/jetbrains/kotlin/analysis/api/symbols/KtCallableSymbol.kt
@@ -13,7 +13,7 @@ import org.jetbrains.kotlin.analysis.api.symbols.pointers.KtSymbolPointer
 import org.jetbrains.kotlin.analysis.api.types.KtType
 import org.jetbrains.kotlin.name.CallableId
 
-public abstract class KtCallableSymbol : KtSymbolWithKind, KtPossibleMemberSymbol, KtDeclarationSymbol {
+public sealed class KtCallableSymbol : KtSymbolWithKind, KtPossibleMemberSymbol, KtDeclarationSymbol {
     public abstract val callableIdIfNonLocal: CallableId?
     public abstract val returnType: KtType
 
diff --git a/analysis/symbol-light-classes/src/org/jetbrains/kotlin/light/classes/symbol/classes/firLightClassUtils.kt b/analysis/symbol-light-classes/src/org/jetbrains/kotlin/light/classes/symbol/classes/firLightClassUtils.kt
index 2cfc399690b..8008e026833 100644
--- a/analysis/symbol-light-classes/src/org/jetbrains/kotlin/light/classes/symbol/classes/firLightClassUtils.kt
+++ b/analysis/symbol-light-classes/src/org/jetbrains/kotlin/light/classes/symbol/classes/firLightClassUtils.kt
@@ -234,6 +234,7 @@ internal fun FirLightClassBase.createMethods(
                 suppressStatic = suppressStatic
             )
             is KtConstructorSymbol -> error("Constructors should be handled separately and not passed to this function")
+            else -> { }
         }
     }