1 files changed, 13 insertions, 0 deletions
diff --git a/solutions/21_macros/macros3.rs b/solutions/21_macros/macros3.rs
new file mode 100644
index 0000000..df35be4
--- /dev/null
+++ b/solutions/21_macros/macros3.rs
@@ -0,0 +1,13 @@
+// Added the attribute `macro_use` attribute.
+#[macro_use]
+mod macros {
+    macro_rules! my_macro {
+        () => {
+            println!("Check out my macro!");
+        };
+    }
+}
+
+fn main() {
+    my_macro!();
+}