diff --git a/compiler/fir/tree/src/org/jetbrains/kotlin/fir/extensions/predicate/AbstractPredicate.kt b/compiler/fir/tree/src/org/jetbrains/kotlin/fir/extensions/predicate/AbstractPredicate.kt
index abb24442a94..b631fe6b8ad 100644
--- a/compiler/fir/tree/src/org/jetbrains/kotlin/fir/extensions/predicate/AbstractPredicate.kt
+++ b/compiler/fir/tree/src/org/jetbrains/kotlin/fir/extensions/predicate/AbstractPredicate.kt
@@ -21,7 +21,7 @@ import org.jetbrains.kotlin.fir.extensions.FirPredicateBasedProvider
  *   to create predicate with meta annotations, and [LookupPredicate] allows to use only annotations with predefined
  *   qualified names
  *
- * Note that predicates can not be used for matching or looking up for local declarations (local functions, local classes, anonymous objects
+ * Note that predicates can not be used for matching or looking up local declarations (local functions, local classes, anonymous objects
  *   and their members). The only exception is matching local classes/anonymous objects with [AbstractPredicate.AnnotatedWith] and
  *   [AbstractPredicate.MetaAnnotatedWith] by [FirPredicateBasedProvider.matches]
  */
diff --git a/plugins/kotlinx-serialization/kotlinx-serialization.k2/src/org/jetbrains/kotlinx/serialization/compiler/fir/checkers/FirSerializationPluginClassChecker.kt b/plugins/kotlinx-serialization/kotlinx-serialization.k2/src/org/jetbrains/kotlinx/serialization/compiler/fir/checkers/FirSerializationPluginClassChecker.kt
index bb7dd38138a..535d284a71e 100644
--- a/plugins/kotlinx-serialization/kotlinx-serialization.k2/src/org/jetbrains/kotlinx/serialization/compiler/fir/checkers/FirSerializationPluginClassChecker.kt
+++ b/plugins/kotlinx-serialization/kotlinx-serialization.k2/src/org/jetbrains/kotlinx/serialization/compiler/fir/checkers/FirSerializationPluginClassChecker.kt
@@ -18,6 +18,7 @@ import org.jetbrains.kotlin.fir.analysis.checkers.isSingleFieldValueClass
 import org.jetbrains.kotlin.fir.analysis.checkers.toRegularClassSymbol
 import org.jetbrains.kotlin.fir.declarations.*
 import org.jetbrains.kotlin.fir.declarations.utils.*
+import org.jetbrains.kotlin.fir.dispatchReceiverClassLookupTagOrNull
 import org.jetbrains.kotlin.fir.expressions.*
 import org.jetbrains.kotlin.fir.moduleData
 import org.jetbrains.kotlin.fir.resolve.defaultType
@@ -453,7 +454,8 @@ object FirSerializationPluginClassChecker : FirClassChecker() {
         reporter: DiagnosticReporter
     ) {
         for (property in properties) {
-            // TODO: reporting diagnostics on properties from superclasses looks a bad idea
+            // Don't report anything on properties from supertypes
+            if (property.propertySymbol.dispatchReceiverClassLookupTagOrNull() != classSymbol.toLookupTag()) continue
             val customSerializerType = property.serializableWith
             val serializerSymbol = customSerializerType?.toRegularClassSymbol(session)
             val propertySymbol = property.propertySymbol