diff --git a/compiler/fir/java/src/org/jetbrains/kotlin/fir/java/JavaSymbolProvider.kt b/compiler/fir/java/src/org/jetbrains/kotlin/fir/java/JavaSymbolProvider.kt
index d88d2e79158..e4daa0e5320 100644
--- a/compiler/fir/java/src/org/jetbrains/kotlin/fir/java/JavaSymbolProvider.kt
+++ b/compiler/fir/java/src/org/jetbrains/kotlin/fir/java/JavaSymbolProvider.kt
@@ -66,8 +66,8 @@ class JavaSymbolProvider(
 
     // NB: looks like it's better not to use this function at all...
     override fun getClassDeclaredMemberScope(classId: ClassId): FirScope? {
-        val classSymbol = getClassLikeSymbolByFqName(classId) ?: return null
-        return declaredMemberScope(classSymbol.fir)
+        // Anyway we cannot build correct declared member scope here
+        return null
     }
 
     override fun getClassUseSiteMemberScope(
diff --git a/compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/FirSymbolProvider.kt b/compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/FirSymbolProvider.kt
index ed9db760dde..b1b33fa43a7 100644
--- a/compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/FirSymbolProvider.kt
+++ b/compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/FirSymbolProvider.kt
@@ -135,7 +135,8 @@ abstract class FirSymbolProvider : FirSessionComponent {
 }
 
 fun FirSymbolProvider.getClassDeclaredCallableSymbols(classId: ClassId, name: Name): List<FirCallableSymbol<*>> {
-    val declaredMemberScope = getClassDeclaredMemberScope(classId) ?: return emptyList()
+    val classSymbol = getClassLikeSymbolByFqName(classId) as? FirRegularClassSymbol ?: return emptyList()
+    val declaredMemberScope = declaredMemberScope(classSymbol.fir)
     val result = mutableListOf<FirCallableSymbol<*>>()
     val processor: (FirCallableSymbol<*>) -> ProcessorAction = {
         result.add(it)
diff --git a/compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/transformers/IntegerLiteralTypeApproximationTransformer.kt b/compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/transformers/IntegerLiteralTypeApproximationTransformer.kt
index e9c3f4795ef..cfc4e76e550 100644
--- a/compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/transformers/IntegerLiteralTypeApproximationTransformer.kt
+++ b/compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/transformers/IntegerLiteralTypeApproximationTransformer.kt
@@ -18,10 +18,11 @@ import org.jetbrains.kotlin.fir.resolvedTypeFromPrototype
 import org.jetbrains.kotlin.fir.scopes.ProcessorAction
 import org.jetbrains.kotlin.fir.scopes.impl.FirIntegerOperator
 import org.jetbrains.kotlin.fir.scopes.impl.FirIntegerOperatorCall
+import org.jetbrains.kotlin.fir.scopes.impl.declaredMemberScope
 import org.jetbrains.kotlin.fir.symbols.AbstractFirBasedSymbol
 import org.jetbrains.kotlin.fir.symbols.StandardClassIds
-import org.jetbrains.kotlin.fir.symbols.impl.FirCallableSymbol
 import org.jetbrains.kotlin.fir.symbols.impl.FirFunctionSymbol
+import org.jetbrains.kotlin.fir.symbols.impl.FirRegularClassSymbol
 import org.jetbrains.kotlin.fir.types.*
 import org.jetbrains.kotlin.fir.visitors.CompositeTransformResult
 import org.jetbrains.kotlin.fir.visitors.FirTransformer
@@ -55,7 +56,7 @@ class IntegerLiteralTypeApproximationTransformer(
         functionCall.transformChildren(this, data)
         val argumentType = functionCall.arguments.firstOrNull()?.resultType?.coneTypeUnsafe<ConeClassLikeType>()
         val receiverClassId = functionCall.dispatchReceiver.typeRef.coneTypeUnsafe<ConeClassLikeType>().lookupTag.classId
-        val scope = symbolProvider.getClassDeclaredMemberScope(receiverClassId)!!
+        val scope = declaredMemberScope((symbolProvider.getClassLikeSymbolByFqName(receiverClassId) as FirRegularClassSymbol).fir)
         var resultSymbol: FirFunctionSymbol<*>? = null
         scope.processFunctionsByName(operator.name) { symbol ->
             if (operator.kind.unary) {