diff --git a/SC2231.md b/SC2231.md
index d9df8e6..4db1461 100644
--- a/SC2231.md
+++ b/SC2231.md
@@ -1,20 +1,20 @@
-## Quote expansions in this `for` loop glob to prevent wordsplitting, e.g. `"$dir"/*.txt` .
+## Quote expansions in this `for` loop glob to prevent word splitting, e.g. `"${dir}"/*.txt`.
 
 ### Problematic code:
 
 ```sh
-for file in $dir/*.txt
+for file in ${dir}/*.txt
 do
-  echo "Found $file"
+  echo "Found ${file}"
 done
 ```
 
 ### Correct code:
 
 ```sh
-for file in "$dir"/*.txt
+for file in "${dir}"/*.txt
 do
-  echo "Found $file"
+  echo "Found ${file}"
 done
 ```
 
@@ -22,7 +22,7 @@ done
 
 When iterating over globs containing expansions, you can still quote all expansions in the path to better handle whitespace and special characters.
 
-Just make sure glob characters are outside quotes. `"$dir/*.txt"` will not glob expand, but `"$dir"/*.txt` or `"$dir"/*."$ext"` will. 
+Just make sure glob characters are outside quotes. `"${dir}/*.txt"` will not glob expand, but `"${dir}"/*.txt` or `"${dir}"/*."${ext}"` will. 
 
 ### Exceptions: