diff --git a/compiler/ir/serialization.common/src/KotlinIr.proto b/compiler/ir/serialization.common/src/KotlinIr.proto
index 6081a223de1..9311b2dc34b 100644
--- a/compiler/ir/serialization.common/src/KotlinIr.proto
+++ b/compiler/ir/serialization.common/src/KotlinIr.proto
@@ -155,7 +155,7 @@ enum IrTypeVariance { // Should we import metadata variance, or better stay sepa
 }
 
 message Annotations {
-  repeated IrCall annotation = 1;
+  repeated IrConstructorCall annotation = 1;
 }
 
 message TypeArguments {
@@ -240,6 +240,12 @@ message IrCall {
   optional IrSymbol super = 4;
 }
 
+message IrConstructorCall {
+  required IrSymbol symbol = 1;
+  required int32 constructor_type_arguments_count = 2;
+  required MemberAccessCommon member_access = 3;
+}
+
 message IrFunctionReference {
   required IrSymbol symbol = 1;
   optional IrStatementOrigin origin = 2;
@@ -485,6 +491,7 @@ message IrOperation {
     IrDynamicMemberExpression dynamic_member = 29;
     IrDynamicOperatorExpression dynamic_operator = 30;
     IrLocalDelegatedPropertyReference local_delegated_property_reference = 31;
+    IrConstructorCall constructor_call = 32;
   }
 }