diff --git a/src/dev/check.rs b/src/dev/check.rs
index daf5bdb2..9002eaff 100644
--- a/src/dev/check.rs
+++ b/src/dev/check.rs
@@ -3,7 +3,7 @@ use std::{cmp::Ordering, fs};
 
 use crate::{
     info_file::{ExerciseInfo, InfoFile},
-    CURRENT_FORMAT_VERSION, DEVELOPING_OFFIFICAL_RUSTLINGS,
+    CURRENT_FORMAT_VERSION, DEVELOPING_OFFICIAL_RUSTLINGS,
 };
 
 pub fn bins_start_end_ind(cargo_toml: &str) -> Result<(usize, usize)> {
@@ -68,7 +68,7 @@ pub fn check() -> Result<()> {
         Ordering::Equal => (),
     }
 
-    if DEVELOPING_OFFIFICAL_RUSTLINGS {
+    if DEVELOPING_OFFICIAL_RUSTLINGS {
         check_cargo_toml(
             &info_file.exercises,
             include_str!("../../dev/Cargo.toml"),
diff --git a/src/dev/update.rs b/src/dev/update.rs
index 981934d6..65dcf768 100644
--- a/src/dev/update.rs
+++ b/src/dev/update.rs
@@ -4,7 +4,7 @@ use anyhow::{Context, Result};
 
 use crate::{
     info_file::{ExerciseInfo, InfoFile},
-    DEVELOPING_OFFIFICAL_RUSTLINGS,
+    DEVELOPING_OFFICIAL_RUSTLINGS,
 };
 
 use super::check::{append_bins, bins_start_end_ind};
@@ -30,7 +30,7 @@ fn update_cargo_toml(
 pub fn update() -> Result<()> {
     let info_file = InfoFile::parse()?;
 
-    if DEVELOPING_OFFIFICAL_RUSTLINGS {
+    if DEVELOPING_OFFICIAL_RUSTLINGS {
         update_cargo_toml(
             &info_file.exercises,
             include_str!("../../dev/Cargo.toml"),
diff --git a/src/exercise.rs b/src/exercise.rs
index c4df9999..60a65bb6 100644
--- a/src/exercise.rs
+++ b/src/exercise.rs
@@ -9,7 +9,7 @@ use std::{
 use crate::{
     embedded::{WriteStrategy, EMBEDDED_FILES},
     info_file::Mode,
-    DEVELOPING_OFFIFICAL_RUSTLINGS,
+    DEVELOPING_OFFICIAL_RUSTLINGS,
 };
 
 pub struct TerminalFileLink<'a> {
@@ -51,7 +51,7 @@ impl Exercise {
         cmd.arg(command);
 
         // A hack to make `cargo run` work when developing Rustlings.
-        if DEVELOPING_OFFIFICAL_RUSTLINGS {
+        if DEVELOPING_OFFICIAL_RUSTLINGS {
             cmd.arg("--manifest-path").arg("dev/Cargo.toml");
         }
 
diff --git a/src/main.rs b/src/main.rs
index ea5f7c92..fa5542af 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -25,7 +25,7 @@ mod watch;
 use self::{app_state::AppState, dev::DevCommands, info_file::InfoFile, watch::WatchExit};
 
 const CURRENT_FORMAT_VERSION: u8 = 1;
-const DEVELOPING_OFFIFICAL_RUSTLINGS: bool = {
+const DEVELOPING_OFFICIAL_RUSTLINGS: bool = {
     #[allow(unused_assignments, unused_mut)]
     let mut debug_profile = false;