diff --git a/melib/src/maildir/mod.rs b/melib/src/maildir/mod.rs
index 038e890c..849dde05 100644
--- a/melib/src/maildir/mod.rs
+++ b/melib/src/maildir/mod.rs
@@ -308,7 +308,7 @@ impl MaildirPathTrait for Path {
         flag
     }
 
-    fn set_flags(&self, flags: Flag, config: &Configuration) -> Result<PathBuf> {
+    fn set_flags(&self, flags: Flag, _config: &Configuration) -> Result<PathBuf> {
         let filename = self
             .file_name()
             .ok_or_else(|| format!("Could not get filename of `{}`", self.display(),))?
@@ -324,11 +324,7 @@ impl MaildirPathTrait for Path {
             );
             (filename.len(), true)
         };
-        let mut new_name: String = if let Some(ref rename_regex) = config.rename_regex {
-            rename_regex.replace_all(&filename[..idx], "").to_string()
-        } else {
-            filename[..idx].to_string()
-        };
+        let mut new_name: String = filename[..idx].to_string();
         if append_2 {
             new_name.push_str(":2,");
         }
diff --git a/melib/src/maildir/tests.rs b/melib/src/maildir/tests.rs
index 2e0f2f29..8db71aed 100644
--- a/melib/src/maildir/tests.rs
+++ b/melib/src/maildir/tests.rs
@@ -147,7 +147,7 @@ fn test_maildir_set_flags_regexp() {
             Path::new("/path/to/new/1423819205.29514_1.foo,U=123:2,S"),
             &[FlagOp::Set(Flag::FLAGGED | Flag::SEEN | Flag::REPLIED)]
         ),
-        Ok(Path::new("/path/to/new/1423819205.29514_1.foo:2,FRS").to_path_buf()),
+        Ok(Path::new("/path/to/new/1423819205.29514_1.foo,U=123:2,FRS").to_path_buf()),
         "Setting the same flags should not change the path"
     );
     assert_eq!(
@@ -156,7 +156,7 @@ fn test_maildir_set_flags_regexp() {
             Path::new("/path/to/new/1423819205.29514_1.foo,U=123:2,FRS"),
             &[FlagOp::UnSet(Flag::FLAGGED | Flag::SEEN | Flag::REPLIED)]
         ),
-        Ok(Path::new("/path/to/new/1423819205.29514_1.foo:2,").to_path_buf()),
+        Ok(Path::new("/path/to/new/1423819205.29514_1.foo,U=123:2,").to_path_buf()),
         "UnSetting all the set flags should change the path"
     );
     assert_eq!(
@@ -165,7 +165,7 @@ fn test_maildir_set_flags_regexp() {
             Path::new("/path/to/new/1423819205.29514_1.foo,U=123:2,FRS"),
             &[FlagOp::Set(Flag::FLAGGED | Flag::TRASHED)]
         ),
-        Ok(Path::new("/path/to/new/1423819205.29514_1.foo:2,FRST").to_path_buf()),
+        Ok(Path::new("/path/to/new/1423819205.29514_1.foo,U=123:2,FRST").to_path_buf()),
         "Setting new flags should change the path to include them"
     );
 }