diff --git a/compiler/fir/providers/src/org/jetbrains/kotlin/fir/resolve/LookupTagUtils.kt b/compiler/fir/providers/src/org/jetbrains/kotlin/fir/resolve/LookupTagUtils.kt
index bc47b5bfd64..268fafa8130 100644
--- a/compiler/fir/providers/src/org/jetbrains/kotlin/fir/resolve/LookupTagUtils.kt
+++ b/compiler/fir/providers/src/org/jetbrains/kotlin/fir/resolve/LookupTagUtils.kt
@@ -118,6 +118,7 @@ fun ConeKotlinType.findClassRepresentation(
 ): ConeClassLikeLookupTag? =
     when (this) {
         is ConeClassLikeType -> this.fullyExpandedType(session).lookupTag
+        is ConeDynamicType -> upperBound.findClassRepresentation(dispatchReceiverParameterType, session)
         is ConeFlexibleType -> lowerBound.findClassRepresentation(dispatchReceiverParameterType, session)
         is ConeCapturedType -> constructor.supertypes.orEmpty()
             .findClassRepresentationThatIsSubtypeOf(dispatchReceiverParameterType, session)