diff --git a/nj2k/src/org/jetbrains/kotlin/nj2k/conversions/ImplicitInitializerConversion.kt b/nj2k/src/org/jetbrains/kotlin/nj2k/conversions/ImplicitInitializerConversion.kt
index 981dad1749f..94071c7ff86 100644
--- a/nj2k/src/org/jetbrains/kotlin/nj2k/conversions/ImplicitInitializerConversion.kt
+++ b/nj2k/src/org/jetbrains/kotlin/nj2k/conversions/ImplicitInitializerConversion.kt
@@ -92,7 +92,7 @@ class ImplicitInitializerConversion(private val context: ConversionContext) : Re
             if (initialized) continue
             val parentConstructors =
                 generateSequence(constructor) { it.parentConstructor() }
-            if (parentConstructors.any { constructors[it]!! }) {
+            if (parentConstructors.any { constructors[it] == true }) {
                 parentConstructors.forEach { constructors[it] = true }
             }
         }