diff --git a/compiler/fir/raw-fir/raw-fir.common/src/org/jetbrains/kotlin/fir/builder/ConversionUtils.kt b/compiler/fir/raw-fir/raw-fir.common/src/org/jetbrains/kotlin/fir/builder/ConversionUtils.kt
index 74c0af85cfd..853eddc074d 100644
--- a/compiler/fir/raw-fir/raw-fir.common/src/org/jetbrains/kotlin/fir/builder/ConversionUtils.kt
+++ b/compiler/fir/raw-fir/raw-fir.common/src/org/jetbrains/kotlin/fir/builder/ConversionUtils.kt
@@ -569,6 +569,7 @@ fun List<FirAnnotationCall>.filterUseSiteTarget(target: AnnotationUseSiteTarget)
         }
     }
 
+// TODO: avoid mutability KT-55002
 fun FirTypeRef.convertToReceiverParameter(): FirReceiverParameter {
     val typeRef = this
     return buildReceiverParameter {