diff --git a/src/constants.rs b/src/constants.rs
index 45526dedd..d4cfb338c 100644
--- a/src/constants.rs
+++ b/src/constants.rs
@@ -205,8 +205,6 @@ pub const DC_LP_AUTH_FLAGS: i32 = DC_LP_AUTH_OAUTH2 | DC_LP_AUTH_NORMAL;
 // QR code scanning (view from Bob, the joiner)
 pub const DC_VC_AUTH_REQUIRED: i32 = 2;
 pub const DC_VC_CONTACT_CONFIRM: i32 = 6;
-pub const DC_BOB_ERROR: i32 = 0;
-pub const DC_BOB_SUCCESS: i32 = 1;
 
 // max. width/height of an avatar
 pub const AVATAR_SIZE: u32 = 192;
diff --git a/src/context.rs b/src/context.rs
index deba9d786..d7d065bd1 100644
--- a/src/context.rs
+++ b/src/context.rs
@@ -17,9 +17,9 @@ use crate::error::*;
 use crate::events::{Event, EventEmitter, EventType, Events};
 use crate::key::{DcKey, SignedPublicKey};
 use crate::login_param::LoginParam;
-use crate::lot::Lot;
 use crate::message::{self, MsgId};
 use crate::scheduler::Scheduler;
+use crate::securejoin::Bob;
 use crate::sql::Sql;
 use std::time::SystemTime;
 
@@ -44,7 +44,7 @@ pub struct InnerContext {
     pub(crate) blobdir: PathBuf,
     pub(crate) sql: Sql,
     pub(crate) os_name: Option<String>,
-    pub(crate) bob: RwLock<BobStatus>,
+    pub(crate) bob: RwLock<Bob>,
     pub(crate) last_smeared_timestamp: RwLock<i64>,
     pub(crate) running_state: RwLock<RunningState>,
     /// Mutex to avoid generating the key for the user more than once.
@@ -508,13 +508,6 @@ impl Default for RunningState {
     }
 }
 
-#[derive(Debug, Default)]
-pub(crate) struct BobStatus {
-    pub expects: i32,
-    pub status: i32,
-    pub qr_scan: Option<Lot>,
-}
-
 pub fn get_version_str() -> &'static str {
     &DC_VERSION_STR
 }
diff --git a/src/dc_receive_imf.rs b/src/dc_receive_imf.rs
index f48986199..bd4d28530 100644
--- a/src/dc_receive_imf.rs
+++ b/src/dc_receive_imf.rs
@@ -19,7 +19,9 @@ use crate::message::{self, MessageState, MessengerMessage, MsgId};
 use crate::mimeparser::*;
 use crate::param::*;
 use crate::peerstate::*;
-use crate::securejoin::{self, handle_securejoin_handshake, observe_securejoin_on_other_device};
+use crate::securejoin::{
+    self, handle_securejoin_handshake, observe_securejoin_on_other_device, BobStatus,
+};
 use crate::stock::StockMessage;
 use crate::{contact, location};
 
@@ -417,7 +419,7 @@ async fn add_parts(
                 Err(err) => {
                     *hidden = true;
 
-                    context.bob.write().await.status = 0; // secure-join failed
+                    context.bob.write().await.status = BobStatus::Error; // secure-join failed
                     context.stop_ongoing().await;
                     warn!(context, "Error in Secure-Join message handling: {}", err);
                     return Ok(());
diff --git a/src/securejoin.rs b/src/securejoin.rs
index 7fb08667e..4af1741ec 100644
--- a/src/securejoin.rs
+++ b/src/securejoin.rs
@@ -15,7 +15,7 @@ use crate::error::{bail, Error};
 use crate::events::EventType;
 use crate::headerdef::HeaderDef;
 use crate::key::{DcKey, Fingerprint, SignedPublicKey};
-use crate::lot::LotState;
+use crate::lot::{Lot, LotState};
 use crate::message::Message;
 use crate::mimeparser::*;
 use crate::param::*;
@@ -67,6 +67,25 @@ macro_rules! get_qr_attr {
     };
 }
 
+#[derive(Debug, PartialEq)]
+pub(crate) enum BobStatus {
+    Error,
+    Success,
+}
+
+impl Default for BobStatus {
+    fn default() -> Self {
+        Self::Error
+    }
+}
+
+#[derive(Debug, Default)]
+pub(crate) struct Bob {
+    pub expects: i32,
+    pub status: BobStatus,
+    pub qr_scan: Option<Lot>,
+}
+
 pub async fn dc_get_securejoin_qr(context: &Context, group_chat_id: ChatId) -> Option<String> {
     /*=======================================================
     ====             Alice - the inviter side            ====
@@ -160,7 +179,7 @@ async fn cleanup(
 ) -> ChatId {
     let mut bob = context.bob.write().await;
     bob.expects = 0;
-    let ret_chat_id: ChatId = if bob.status == DC_BOB_SUCCESS {
+    let ret_chat_id: ChatId = if bob.status == BobStatus::Success {
         if join_vg {
             chat::get_chat_id_by_grpid(
                 context,
@@ -223,7 +242,7 @@ async fn securejoin(context: &Context, qr: &str) -> ChatId {
     join_vg = qr_scan.get_state() == LotState::QrAskVerifyGroup;
     {
         let mut bob = context.bob.write().await;
-        bob.status = 0;
+        bob.status = BobStatus::Error;
         bob.qr_scan = Some(qr_scan);
     }
     if fingerprint_equals_sender(
@@ -545,7 +564,7 @@ pub(crate) async fn handle_securejoin_handshake(
                     },
                 )
                 .await;
-                context.bob.write().await.status = 0; // secure-join failed
+                context.bob.write().await.status = BobStatus::Error; // secure-join failed
                 context.stop_ongoing().await;
                 return Ok(HandshakeMessage::Ignore);
             }
@@ -558,7 +577,7 @@ pub(crate) async fn handle_securejoin_handshake(
                     "Fingerprint mismatch on joiner-side.",
                 )
                 .await;
-                context.bob.write().await.status = 0; // secure-join failed
+                context.bob.write().await.status = BobStatus::Error; // secure-join failed
                 context.stop_ongoing().await;
                 return Ok(HandshakeMessage::Ignore);
             }
@@ -756,7 +775,7 @@ pub(crate) async fn handle_securejoin_handshake(
                     "Contact confirm message not encrypted.",
                 )
                 .await;
-                context.bob.write().await.status = 0;
+                context.bob.write().await.status = BobStatus::Error;
                 return Ok(abort_retval);
             }
 
@@ -805,7 +824,7 @@ pub(crate) async fn handle_securejoin_handshake(
             )
             .await?;
 
-            context.bob.write().await.status = 1;
+            context.bob.write().await.status = BobStatus::Success;
             context.stop_ongoing().await;
             Ok(if join_vg {
                 HandshakeMessage::Propagate