diff --git a/tgbotapi.webapps/src/jsMain/kotlin/dev/inmo/tgbotapi/webapps/ThemeParams.kt b/tgbotapi.webapps/src/jsMain/kotlin/dev/inmo/tgbotapi/webapps/ThemeParams.kt
index e9d19c273a..754e6e881a 100644
--- a/tgbotapi.webapps/src/jsMain/kotlin/dev/inmo/tgbotapi/webapps/ThemeParams.kt
+++ b/tgbotapi.webapps/src/jsMain/kotlin/dev/inmo/tgbotapi/webapps/ThemeParams.kt
@@ -43,4 +43,6 @@ external interface ThemeParams {
     val subtitleTextColor: Color.Hex?
     @JsName("destructive_text_color")
     val destructiveTextColor: Color.Hex?
+    @JsName("section_separator_color")
+    val sectionSeparatorColor: Color.Hex?
 }