diff --git a/blog/content/second-edition/posts/07-hardware-interrupts/index.md b/blog/content/second-edition/posts/07-hardware-interrupts/index.md
index 61c72388..12cc3b5a 100644
--- a/blog/content/second-edition/posts/07-hardware-interrupts/index.md
+++ b/blog/content/second-edition/posts/07-hardware-interrupts/index.md
@@ -419,7 +419,7 @@ fn test_println_output() {
 
 We performed the following changes:
 
-- We keep the writer locked for the complete test by using the `lock()` method explicitly. Instead of `println`, we use the [`writeln`] marco that allows printing to an already locked writer.
+- We keep the writer locked for the complete test by using the `lock()` method explicitly. Instead of `println`, we use the [`writeln`] macro that allows printing to an already locked writer.
 - To avoid another deadlock, we disable interrupts for the tests duration. Otherwise the test might get interrupted while the writer is still locked.
 - Since the timer interrupt handler can still run before the test, we print an additional newline `\n` before printing the string `s`. This way, we avoid test failure when the timer handler already printed some `.` characters to the current line.