diff --git a/exercises/quantum-adv-test.sh b/exercises/quantum-adv-test.sh
index 34f4f62..abec5e4 100755
--- a/exercises/quantum-adv-test.sh
+++ b/exercises/quantum-adv-test.sh
@@ -10,7 +10,7 @@
 echo "*********************************************************************"
 
 # This script exits on an error so that errors don't compound and you see
-# only the first error that occured.
+# only the first error that occurred.
 
 set -o errtrace