diff --git a/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/types/BotCommand.kt b/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/types/BotCommand.kt
index 3ac9d3470d..5f280450de 100644
--- a/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/types/BotCommand.kt
+++ b/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/types/BotCommand.kt
@@ -4,7 +4,10 @@ import com.github.insanusmokrassar.TelegramBotAPI.utils.throwRangeError
 import kotlinx.serialization.SerialName
 import kotlinx.serialization.Serializable
 
-val BotCommandNameRegex = Regex("^[a-z_0-9]{${botCommandLengthLimit.first},${botCommandLengthLimit.last}}$")
+// Made as lazy for correct work in K/JS
+val BotCommandNameRegex by lazy {
+    Regex("^[a-z_0-9]{${botCommandLengthLimit.first},${botCommandLengthLimit.last}}$")
+}
 
 @Serializable
 data class BotCommand(
diff --git a/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/types/Common.kt b/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/types/Common.kt
index 915e9bb031..d66576899c 100644
--- a/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/types/Common.kt
+++ b/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/types/Common.kt
@@ -65,11 +65,14 @@ val explanationLimit = 0 .. 200
 
 val openPeriodPollSecondsLimit = 5 .. 600
 
-val telegramInlineModeGifPermittedMimeTypes = listOf(
-    BuiltinMimeTypes.Image.Jpg,
-    BuiltinMimeTypes.Image.Gif,
-    BuiltinMimeTypes.Video.MP4
-)
+// Made as lazy for correct work in K/JS
+val telegramInlineModeGifPermittedMimeTypes by lazy {
+    listOf(
+        BuiltinMimeTypes.Image.Jpg,
+        BuiltinMimeTypes.Image.Gif,
+        BuiltinMimeTypes.Video.MP4
+    )
+}
 
 const val chatIdField = "chat_id"
 const val messageIdField = "message_id"