diff --git a/compiler/fir/fir2ir/src/org/jetbrains/kotlin/fir/lazy/Fir2IrLazySimpleFunction.kt b/compiler/fir/fir2ir/src/org/jetbrains/kotlin/fir/lazy/Fir2IrLazySimpleFunction.kt
index 2b347aaee2b..bd9bc529459 100644
--- a/compiler/fir/fir2ir/src/org/jetbrains/kotlin/fir/lazy/Fir2IrLazySimpleFunction.kt
+++ b/compiler/fir/fir2ir/src/org/jetbrains/kotlin/fir/lazy/Fir2IrLazySimpleFunction.kt
@@ -8,7 +8,6 @@ package org.jetbrains.kotlin.fir.lazy
 import org.jetbrains.kotlin.fir.backend.*
 import org.jetbrains.kotlin.fir.declarations.*
 import org.jetbrains.kotlin.fir.initialSignatureAttr
-import org.jetbrains.kotlin.fir.originalIfFakeOverride
 import org.jetbrains.kotlin.fir.symbols.Fir2IrSimpleFunctionSymbol
 import org.jetbrains.kotlin.ir.declarations.*
 import org.jetbrains.kotlin.ir.declarations.lazy.lazyVar
@@ -72,7 +71,7 @@ class Fir2IrLazySimpleFunction(
         val parent = parent
         if (isFakeOverride && parent is Fir2IrLazyClass) {
             fakeOverrideGenerator.calcBaseSymbolsForFakeOverrideFunction(
-                firParent, this, fir.symbol.originalIfFakeOverride()!!
+                firParent, this, fir.symbol
             )
             fakeOverrideGenerator.getOverriddenSymbolsForFakeOverride(this)?.let { return@lazyVar it }
         }