diff --git a/icu4c/source/common/unicode/chariter.h b/icu4c/source/common/unicode/chariter.h
index 4f320b90e2c..45f4d984c74 100644
--- a/icu4c/source/common/unicode/chariter.h
+++ b/icu4c/source/common/unicode/chariter.h
@@ -297,7 +297,7 @@ protected:
  * \code
  *  void traverseForward(CharacterIterator& iter)
  *  {
- *      for(char16_t c = iter.first(); c != CharacterIterator.DONE; c = iter.next()) {
+ *      for(char16_t c = iter.first(); c != CharacterIterator::DONE; c = iter.next()) {
  *          processChar(c);
  *      }
  *  }
@@ -308,7 +308,7 @@ protected:
  * \code
  *  void traverseBackward(CharacterIterator& iter)
  *  {
- *      for(char16_t c = iter.last(); c != CharacterIterator.DONE; c = iter.previous()) {
+ *      for(char16_t c = iter.last(); c != CharacterIterator::DONE; c = iter.previous()) {
  *          processChar(c);
  *      }
  *  }
@@ -322,11 +322,11 @@ protected:
  * {
  *      char16_t c;
  *      for (c = iter.setIndex(pos);
- *      c != CharacterIterator.DONE && (Unicode::isLetter(c) || Unicode::isDigit(c));
+ *      c != CharacterIterator::DONE && (Unicode::isLetter(c) || Unicode::isDigit(c));
  *          c = iter.next()) {}
  *      int32_t end = iter.getIndex();
  *      for (c = iter.setIndex(pos);
- *          c != CharacterIterator.DONE && (Unicode::isLetter(c) || Unicode::isDigit(c));
+ *          c != CharacterIterator::DONE && (Unicode::isLetter(c) || Unicode::isDigit(c));
  *          c = iter.previous()) {}
  *      int32_t start = iter.getIndex() + 1;
  *