diff --git a/tgbotapi.behaviour_builder/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/behaviour_builder/filters/MessageFilterForums.kt b/tgbotapi.behaviour_builder/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/behaviour_builder/filters/MessageFilterForums.kt
new file mode 100644
index 0000000000..c108b48867
--- /dev/null
+++ b/tgbotapi.behaviour_builder/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/behaviour_builder/filters/MessageFilterForums.kt
@@ -0,0 +1,12 @@
+package dev.inmo.tgbotapi.extensions.behaviour_builder.filters
+
+import dev.inmo.tgbotapi.extensions.behaviour_builder.utils.SimpleFilter
+import dev.inmo.tgbotapi.types.message.abstracts.*
+import dev.inmo.tgbotapi.utils.extensions.threadIdOrNull
+
+/**
+ * Allow only messages which are not in some forum
+ */
+val MessageFilterForums = SimpleFilter<Message> {
+    it.threadIdOrNull == null
+}