diff --git a/build-common/src/org/jetbrains/kotlin/incremental/protoDifferenceUtils.kt b/build-common/src/org/jetbrains/kotlin/incremental/protoDifferenceUtils.kt
index e1ee0e48f58..640d875b307 100644
--- a/build-common/src/org/jetbrains/kotlin/incremental/protoDifferenceUtils.kt
+++ b/build-common/src/org/jetbrains/kotlin/incremental/protoDifferenceUtils.kt
@@ -208,6 +208,8 @@ private class DifferenceCalculatorForClass(oldData: ProtoMapValue, newData: Prot
                     names.addAll(calcDifferenceForNonPrivateMembers(ProtoBuf.Class::getFunctionList))
                 ProtoBufClassKind.PROPERTY_LIST ->
                     names.addAll(calcDifferenceForNonPrivateMembers(ProtoBuf.Class::getPropertyList))
+                ProtoBufClassKind.TYPE_ALIAS_LIST ->
+                    names.addAll(calcDifferenceForNonPrivateMembers(ProtoBuf.Class::getTypeAliasList))
                 ProtoBufClassKind.ENUM_ENTRY_LIST -> {
                     isClassAffected = true
                 }