diff --git a/entities/src/filter.rs b/entities/src/filter.rs
index 0e8a28c..5d4c470 100644
--- a/entities/src/filter.rs
+++ b/entities/src/filter.rs
@@ -1,16 +1,29 @@
 use serde::{Deserialize, Serialize};
-use time::{serde::iso8601, OffsetDateTime};
 
-/// Represents a single Filter
-#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
-pub struct Filter {
-    id: String,
-    phrase: String,
-    context: Vec<FilterContext>,
-    #[serde(with = "iso8601::option")]
-    expires_at: Option<OffsetDateTime>,
-    irreversible: bool,
-    whole_word: bool,
+mod v1 {
+    pub use super::FilterContext;
+    use serde::{Deserialize, Serialize};
+    use time::{serde::iso8601, OffsetDateTime};
+
+    /// Represents a single Filter
+    #[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
+    pub struct Filter {
+        /// The ID of the Filter in the database.
+        pub id: String,
+        /// The text to be filtered.
+        pub phrase: String,
+        /// The contexts in which the filter should be applied.
+        pub context: Vec<FilterContext>,
+        /// When the filter should no longer be applied.
+        ///
+        /// `None` indicates that the filter does not expire.
+        #[serde(with = "iso8601::option")]
+        pub expires_at: Option<OffsetDateTime>,
+        /// Should matching entities in home and notifications be dropped by the server?
+        pub irreversible: bool,
+        /// Should the filter consider word boundaries?
+        pub whole_word: bool,
+    }
 }
 
 /// Represents the various types of Filter contexts