diff --git a/deltachat-ffi/src/lib.rs b/deltachat-ffi/src/lib.rs
index 3db4874ca..980b9d8c7 100644
--- a/deltachat-ffi/src/lib.rs
+++ b/deltachat-ffi/src/lib.rs
@@ -1324,7 +1324,9 @@ pub unsafe extern "C" fn dc_get_securejoin_qr(
     }
 
     let context = &*context;
-    dc_securejoin::dc_get_securejoin_qr(context, chat_id).unwrap_or("").strdup()
+    dc_securejoin::dc_get_securejoin_qr(context, chat_id)
+        .unwrap_or("")
+        .strdup()
 }
 
 #[no_mangle]
diff --git a/examples/repl/main.rs b/examples/repl/main.rs
index 27a990789..c4fd6be5a 100644
--- a/examples/repl/main.rs
+++ b/examples/repl/main.rs
@@ -14,11 +14,11 @@ extern crate lazy_static;
 extern crate rusqlite;
 
 use std::borrow::Cow::{self, Borrowed, Owned};
+use std::io::{self, Write};
+use std::process::Command;
 use std::ptr;
 use std::sync::atomic::{AtomicBool, Ordering};
 use std::sync::{Arc, Mutex, RwLock};
-use std::process::Command;
-use std::io::{self, Write};
 
 use deltachat::config;
 use deltachat::configure::*;
@@ -518,16 +518,18 @@ unsafe fn handle_cmd(line: &str, ctx: Arc<RwLock<Context>>) -> Result<ExitResult
         }
         "getqr" | "getbadqr" => {
             start_threads(ctx.clone());
-            if let Some(mut qr) = dc_get_securejoin_qr(&ctx.read().unwrap(), arg1.parse().unwrap_or_default()) {
+            if let Some(mut qr) =
+                dc_get_securejoin_qr(&ctx.read().unwrap(), arg1.parse().unwrap_or_default())
+            {
                 if !qr.is_empty() {
                     if arg0 == "getbadqr" && qr.len() > 40 {
                         qr.replace_range(12..22, "0000000000")
                     }
                     println!("{}", qr);
                     let output = Command::new("qrencode")
-                            .args(&["-t", "ansiutf8", qr.as_str(), "-o", "-"])
-                            .output()
-                            .expect("failed to execute process");
+                        .args(&["-t", "ansiutf8", qr.as_str(), "-o", "-"])
+                        .output()
+                        .expect("failed to execute process");
                     io::stdout().write_all(&output.stdout).unwrap();
                     io::stderr().write_all(&output.stderr).unwrap();
                 }
diff --git a/src/dc_securejoin.rs b/src/dc_securejoin.rs
index c1b90ffd0..a1d26b9ea 100644
--- a/src/dc_securejoin.rs
+++ b/src/dc_securejoin.rs
@@ -22,13 +22,9 @@ use crate::stock::StockMessage;
 use crate::types::*;
 use crate::x::*;
 
-pub const NON_ALPHANUMERIC_WITHOUT_DOT: &AsciiSet = &NON_ALPHANUMERIC
-    .remove(b'.');
+pub const NON_ALPHANUMERIC_WITHOUT_DOT: &AsciiSet = &NON_ALPHANUMERIC.remove(b'.');
 
-pub unsafe fn dc_get_securejoin_qr(
-    context: &Context,
-    group_chat_id: uint32_t,
-) -> Option<String> {
+pub unsafe fn dc_get_securejoin_qr(context: &Context, group_chat_id: uint32_t) -> Option<String> {
     /* =========================================================
     ====             Alice - the inviter side            ====
     ====   Step 1 in "Setup verified contact" protocol   ====
@@ -61,7 +57,6 @@ pub unsafe fn dc_get_securejoin_qr(
     });
     let self_addr = context.sql.get_config(context, "configured_addr");
 
-
     if self_addr.is_none() {
         error!(context, 0, "Not configured, cannot generate QR code.",);
         return cleanup(fingerprint, qr);
@@ -79,8 +74,10 @@ pub unsafe fn dc_get_securejoin_qr(
         return cleanup(fingerprint, qr);
     }
 
-    let self_addr_urlencoded = utf8_percent_encode(&self_addr, NON_ALPHANUMERIC_WITHOUT_DOT).to_string();
-    let self_name_urlencoded = utf8_percent_encode(&self_name, NON_ALPHANUMERIC_WITHOUT_DOT).to_string();
+    let self_addr_urlencoded =
+        utf8_percent_encode(&self_addr, NON_ALPHANUMERIC_WITHOUT_DOT).to_string();
+    let self_name_urlencoded =
+        utf8_percent_encode(&self_name, NON_ALPHANUMERIC_WITHOUT_DOT).to_string();
 
     qr = if 0 != group_chat_id {
         if let Ok(chat) = Chat::load_from_db(context, group_chat_id) {