diff --git a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/bot/ktor/base/AbstractRequestCallFactory.kt b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/bot/ktor/base/AbstractRequestCallFactory.kt
index f950f30e5b..9a633f38a5 100644
--- a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/bot/ktor/base/AbstractRequestCallFactory.kt
+++ b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/bot/ktor/base/AbstractRequestCallFactory.kt
@@ -9,6 +9,7 @@ import dev.inmo.tgbotapi.bot.exceptions.newRequestException
 import dev.inmo.tgbotapi.requests.GetUpdatesRequest
 import dev.inmo.tgbotapi.requests.abstracts.Request
 import dev.inmo.tgbotapi.types.Response
+import dev.inmo.tgbotapi.types.message.textsources.pre
 import dev.inmo.tgbotapi.utils.DefaultKTgBotAPIKSLog
 import dev.inmo.tgbotapi.utils.TelegramAPIUrlsKeeper
 import io.ktor.client.HttpClient
@@ -16,6 +17,7 @@ import io.ktor.client.plugins.timeout
 import io.ktor.client.request.*
 import io.ktor.client.statement.bodyAsText
 import io.ktor.http.ContentType
+import io.ktor.http.content.*
 import kotlinx.serialization.Serializable
 import kotlinx.serialization.json.Json
 import kotlin.collections.set
@@ -33,7 +35,14 @@ abstract class AbstractRequestCallFactory(
         jsonFormatter: Json
     ): T? {
         val preparedBody = prepareCallBody(client, urlsKeeper, request) ?: return null
-        logger.v { "Prepared body for $request: $preparedBody" }
+        logger.v {
+            val bodyValue = if (preparedBody is TextContent) {
+                preparedBody.text
+            } else {
+                preparedBody.toString()
+            }
+            "Prepared body for $request: $bodyValue"
+        }
 
         client.post {
             url(
diff --git a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/LinkPreviewOptions.kt b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/LinkPreviewOptions.kt
index c998468b48..5890f7d686 100644
--- a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/LinkPreviewOptions.kt
+++ b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/LinkPreviewOptions.kt
@@ -13,7 +13,7 @@ sealed interface LinkPreviewOptions {
     val preferLargeMedia: Boolean
     val showAboveText: Boolean
 
-    @Serializable
+    @Serializable(LinkPreviewOptions.Companion::class)
     data object Disabled : LinkPreviewOptions {
         @Required
         @EncodeDefault
@@ -29,7 +29,7 @@ sealed interface LinkPreviewOptions {
             get() = false
     }
 
-    @Serializable
+    @Serializable(LinkPreviewOptions.Companion::class)
     data class Large(
         @SerialName(urlField)
         override val url: String?,
@@ -48,7 +48,7 @@ sealed interface LinkPreviewOptions {
             get() = false
     }
 
-    @Serializable
+    @Serializable(LinkPreviewOptions.Companion::class)
     data class Small(
         @SerialName(urlField)
         override val url: String?,
@@ -67,7 +67,7 @@ sealed interface LinkPreviewOptions {
             get() = false
     }
 
-    @Serializable
+    @Serializable(LinkPreviewOptions.Companion::class)
     data class Default(
         @SerialName(urlField)
         override val url: String?,
@@ -96,9 +96,7 @@ sealed interface LinkPreviewOptions {
         val preferLargeMedia: Boolean = false,
         @SerialName(showAboveTextField)
         val showAboveText: Boolean = false,
-    ) {
-
-    }
+    )
 
     companion object : KSerializer<LinkPreviewOptions> {
         override val descriptor: SerialDescriptor
@@ -116,13 +114,16 @@ sealed interface LinkPreviewOptions {
         }
 
         override fun serialize(encoder: Encoder, value: LinkPreviewOptions) {
-            when (value) {
-                is Disabled -> Disabled.serializer().serialize(encoder, value)
-                is Large -> Large.serializer().serialize(encoder, value)
-                is Default -> Default.serializer().serialize(encoder, value)
-                is Small -> Small.serializer().serialize(encoder, value)
-            }
+            Surrogate.serializer().serialize(
+                encoder,
+                Surrogate(
+                    isDisabled = value.isDisabled,
+                    url = value.url,
+                    preferSmallMedia = value.preferSmallMedia,
+                    preferLargeMedia = value.preferLargeMedia,
+                    showAboveText = value.showAboveText
+                )
+            )
         }
-
     }
 }
\ No newline at end of file