diff --git a/plugins/kotlin-serialization/kotlin-serialization-compiler/src/org/jetbrains/kotlinx/serialization/compiler/backend/common/TypeUtil.kt b/plugins/kotlin-serialization/kotlin-serialization-compiler/src/org/jetbrains/kotlinx/serialization/compiler/backend/common/TypeUtil.kt
index 8578ca97070..f274e18f24a 100644
--- a/plugins/kotlin-serialization/kotlin-serialization-compiler/src/org/jetbrains/kotlinx/serialization/compiler/backend/common/TypeUtil.kt
+++ b/plugins/kotlin-serialization/kotlin-serialization-compiler/src/org/jetbrains/kotlinx/serialization/compiler/backend/common/TypeUtil.kt
@@ -197,6 +197,10 @@ fun findStandardKotlinTypeSerializer(module: ModuleDescriptor, kType: KotlinType
         "kotlin.ShortArray" -> "ShortArraySerializer"
         "kotlin.IntArray" -> "IntArraySerializer"
         "kotlin.LongArray" -> "LongArraySerializer"
+        "kotlin.UByteArray" -> "UByteArraySerializer"
+        "kotlin.UShortArray" -> "UShortArraySerializer"
+        "kotlin.UIntArray" -> "UIntArraySerializer"
+        "kotlin.ULongArray" -> "ULongArraySerializer"
         "kotlin.CharArray" -> "CharArraySerializer"
         "kotlin.FloatArray" -> "FloatArraySerializer"
         "kotlin.DoubleArray" -> "DoubleArraySerializer"