diff --git a/examples/word_counter/README.md b/examples/word_counter/README.md
index b13542b3fb..d213460211 100644
--- a/examples/word_counter/README.md
+++ b/examples/word_counter/README.md
@@ -21,4 +21,4 @@ anyone => 2
 any => 1
 an => 4
 ...
-```:
+```
diff --git a/examples/word_counter/word_counter.v b/examples/word_counter/word_counter.v
index 81761183e3..668fe96f94 100644
--- a/examples/word_counter/word_counter.v
+++ b/examples/word_counter/word_counter.v
@@ -18,7 +18,7 @@ fn main() {
 			if key == '' {
 				continue
 			}
-			m[key] = m[key] + 1
+			m[key] = m[key] + 1 // TODO m[key]++
 		}
 	}
 	// Sort the keys
@@ -51,6 +51,7 @@ fn filter_word(word string) string {
 	return word.substr(start, end)
 }
 
+// TODO remove once it's possible to call word[i].is_letter()
 fn is_letter(c byte) bool {
 	return c.is_letter()
 }