diff --git a/Userland/Applications/FileManager/PropertiesWindow.cpp b/Userland/Applications/FileManager/PropertiesWindow.cpp
index 8811e9938c..730ef96084 100644
--- a/Userland/Applications/FileManager/PropertiesWindow.cpp
+++ b/Userland/Applications/FileManager/PropertiesWindow.cpp
@@ -104,7 +104,7 @@ ErrorOr<void> PropertiesWindow::create_widgets(bool disable_rename)
         m_directory_statistics_calculator->on_update = [this, origin_event_loop = &Core::EventLoop::current()](off_t total_size_in_bytes, size_t file_count, size_t directory_count) {
             origin_event_loop->deferred_invoke([=, weak_this = make_weak_ptr<PropertiesWindow>()] {
                 if (auto strong_this = weak_this.strong_ref())
-                    strong_this->m_size_label->set_text(String::formatted("{}\n{} files, {} subdirectories", human_readable_size_long(total_size_in_bytes, UseThousandsSeparator::Yes), file_count, directory_count).release_value_but_fixme_should_propagate_errors());
+                    strong_this->m_size_label->set_text(MUST(String::formatted("{}\n{} files, {} subdirectories", human_readable_size_long(total_size_in_bytes, UseThousandsSeparator::Yes), file_count, directory_count)));
             });
         };
         m_directory_statistics_calculator->start();
@@ -195,10 +195,10 @@ ErrorOr<void> PropertiesWindow::create_general_tab(GUI::TabWidget& tab_widget, b
     group->set_text(String::formatted("{} ({})", group_name, st.st_gid).release_value_but_fixme_should_propagate_errors());
 
     auto* created_at = general_tab.find_descendant_of_type_named<GUI::Label>("created_at");
-    created_at->set_text(String::from_byte_string(GUI::FileSystemModel::timestamp_string(st.st_ctime)).release_value_but_fixme_should_propagate_errors());
+    created_at->set_text(MUST(String::from_byte_string(GUI::FileSystemModel::timestamp_string(st.st_ctime))));
 
     auto* last_modified = general_tab.find_descendant_of_type_named<GUI::Label>("last_modified");
-    last_modified->set_text(String::from_byte_string(GUI::FileSystemModel::timestamp_string(st.st_mtime)).release_value_but_fixme_should_propagate_errors());
+    last_modified->set_text(MUST(String::from_byte_string(GUI::FileSystemModel::timestamp_string(st.st_mtime))));
 
     auto* owner_read = general_tab.find_descendant_of_type_named<GUI::CheckBox>("owner_read");
     auto* owner_write = general_tab.find_descendant_of_type_named<GUI::CheckBox>("owner_write");
diff --git a/Userland/Applications/Mail/MailWidget.cpp b/Userland/Applications/Mail/MailWidget.cpp
index 996de3277e..43462f4f72 100644
--- a/Userland/Applications/Mail/MailWidget.cpp
+++ b/Userland/Applications/Mail/MailWidget.cpp
@@ -160,7 +160,7 @@ ErrorOr<bool> MailWidget::connect_and_login()
 
     auto& list_items = response.data().list_items();
 
-    m_statusbar->set_text(String::formatted("Loaded {} mailboxes", list_items.size()).release_value_but_fixme_should_propagate_errors());
+    m_statusbar->set_text(MUST(String::formatted("Loaded {} mailboxes", list_items.size())));
 
     m_account_holder = AccountHolder::create();
     m_account_holder->add_account_with_name_and_mailboxes(username, move(list_items));