diff --git a/agb/rust-toolchain.toml b/agb/rust-toolchain.toml
index 06842486..6e1f5327 100644
--- a/agb/rust-toolchain.toml
+++ b/agb/rust-toolchain.toml
@@ -1,3 +1,3 @@
 [toolchain]
 channel = "nightly"
-components = ["rust-src", "clippy"]
\ No newline at end of file
+components = ["rust-src", "clippy", "rustfmt"]
diff --git a/book/games/pong/rust-toolchain.toml b/book/games/pong/rust-toolchain.toml
index 06842486..6e1f5327 100644
--- a/book/games/pong/rust-toolchain.toml
+++ b/book/games/pong/rust-toolchain.toml
@@ -1,3 +1,3 @@
 [toolchain]
 channel = "nightly"
-components = ["rust-src", "clippy"]
\ No newline at end of file
+components = ["rust-src", "clippy", "rustfmt"]
diff --git a/examples/combo/rust-toolchain.toml b/examples/combo/rust-toolchain.toml
index 06842486..6e1f5327 100644
--- a/examples/combo/rust-toolchain.toml
+++ b/examples/combo/rust-toolchain.toml
@@ -1,3 +1,3 @@
 [toolchain]
 channel = "nightly"
-components = ["rust-src", "clippy"]
\ No newline at end of file
+components = ["rust-src", "clippy", "rustfmt"]
diff --git a/examples/hyperspace-roll/rust-toolchain.toml b/examples/hyperspace-roll/rust-toolchain.toml
index 06842486..6e1f5327 100644
--- a/examples/hyperspace-roll/rust-toolchain.toml
+++ b/examples/hyperspace-roll/rust-toolchain.toml
@@ -1,3 +1,3 @@
 [toolchain]
 channel = "nightly"
-components = ["rust-src", "clippy"]
\ No newline at end of file
+components = ["rust-src", "clippy", "rustfmt"]
diff --git a/examples/the-hat-chooses-the-wizard/rust-toolchain.toml b/examples/the-hat-chooses-the-wizard/rust-toolchain.toml
index 06842486..6e1f5327 100644
--- a/examples/the-hat-chooses-the-wizard/rust-toolchain.toml
+++ b/examples/the-hat-chooses-the-wizard/rust-toolchain.toml
@@ -1,3 +1,3 @@
 [toolchain]
 channel = "nightly"
-components = ["rust-src", "clippy"]
\ No newline at end of file
+components = ["rust-src", "clippy", "rustfmt"]
diff --git a/examples/the-purple-night/rust-toolchain.toml b/examples/the-purple-night/rust-toolchain.toml
index 06842486..6e1f5327 100644
--- a/examples/the-purple-night/rust-toolchain.toml
+++ b/examples/the-purple-night/rust-toolchain.toml
@@ -1,3 +1,3 @@
 [toolchain]
 channel = "nightly"
-components = ["rust-src", "clippy"]
\ No newline at end of file
+components = ["rust-src", "clippy", "rustfmt"]
diff --git a/template/rust-toolchain.toml b/template/rust-toolchain.toml
index 06842486..6e1f5327 100644
--- a/template/rust-toolchain.toml
+++ b/template/rust-toolchain.toml
@@ -1,3 +1,3 @@
 [toolchain]
 channel = "nightly"
-components = ["rust-src", "clippy"]
\ No newline at end of file
+components = ["rust-src", "clippy", "rustfmt"]