diff --git a/src/database/migrations/init.rs b/src/database/migrations/init.rs
index 4dae83a4..2b7c1b73 100644
--- a/src/database/migrations/init.rs
+++ b/src/database/migrations/init.rs
@@ -102,6 +102,12 @@ pub async fn create_database() {
                         "content": "text"
                     },
                     "name": "content"
+                },
+                {
+                    "key": {
+                        "channel": 1
+                    },
+                    "name": "channel"
                 }
             ]
         },
@@ -110,6 +116,56 @@ pub async fn create_database() {
     .await
     .expect("Failed to create message index.");
 
+    get_db()
+    .run_command(
+        doc! {
+            "createIndexes": "messages",
+            "indexes": [
+                {
+                    "key": {
+                        "_id.channel": 1,
+                        "_id.user": 1,
+                    },
+                    "name": "compound_id"
+                },
+                {
+                    "key": {
+                        "_id.user": 1,
+                    },
+                    "name": "user_id"
+                }
+            ]
+        },
+        None,
+    )
+    .await
+    .expect("Failed to create channel_unreads index.");
+
+    get_db()
+    .run_command(
+        doc! {
+            "createIndexes": "messages",
+            "indexes": [
+                {
+                    "key": {
+                        "_id.server": 1,
+                        "_id.user": 1,
+                    },
+                    "name": "compound_id"
+                },
+                {
+                    "key": {
+                        "_id.user": 1,
+                    },
+                    "name": "user_id"
+                }
+            ]
+        },
+        None,
+    )
+    .await
+    .expect("Failed to create server_members index.");
+
     db.collection("migrations")
         .insert_one(
             doc! {
diff --git a/src/database/migrations/scripts.rs b/src/database/migrations/scripts.rs
index cbf5ac3d..eeb12d6d 100644
--- a/src/database/migrations/scripts.rs
+++ b/src/database/migrations/scripts.rs
@@ -11,7 +11,7 @@ struct MigrationInfo {
     revision: i32,
 }
 
-pub const LATEST_REVISION: i32 = 11;
+pub const LATEST_REVISION: i32 = 12;
 
 pub async fn migrate_database() {
     let migrations = get_collection("migrations");
@@ -372,6 +372,78 @@ pub async fn run_migrations(revision: i32) -> i32 {
             .unwrap();
     }
 
+    if revision <= 11 {
+        info!("Running migration [revision 11 / 2021-11-14]: Add indexes to database.");
+
+        get_db()
+        .run_command(
+            doc! {
+                "createIndexes": "messages",
+                "indexes": [
+                    {
+                        "key": {
+                            "channel": 1
+                        },
+                        "name": "channel"
+                    }
+                ]
+            },
+            None,
+        )
+        .await
+        .expect("Failed to create message index.");
+
+        get_db()
+        .run_command(
+            doc! {
+                "createIndexes": "messages",
+                "indexes": [
+                    {
+                        "key": {
+                            "_id.channel": 1,
+                            "_id.user": 1,
+                        },
+                        "name": "compound_id"
+                    },
+                    {
+                        "key": {
+                            "_id.user": 1,
+                        },
+                        "name": "user_id"
+                    }
+                ]
+            },
+            None,
+        )
+        .await
+        .expect("Failed to create channel_unreads index.");
+
+        get_db()
+        .run_command(
+            doc! {
+                "createIndexes": "messages",
+                "indexes": [
+                    {
+                        "key": {
+                            "_id.server": 1,
+                            "_id.user": 1,
+                        },
+                        "name": "compound_id"
+                    },
+                    {
+                        "key": {
+                            "_id.user": 1,
+                        },
+                        "name": "user_id"
+                    }
+                ]
+            },
+            None,
+        )
+        .await
+        .expect("Failed to create server_members index.");
+    }
+
     // Need to migrate fields on attachments, change `user_id`, `object_id`, etc to `parent`.
 
     // Reminder to update LATEST_REVISION when adding new migrations.