diff --git a/textattack/transformations/word_swaps/word_swap_qwerty.py b/textattack/transformations/word_swaps/word_swap_qwerty.py
index 1bdec2a9..34a1a853 100644
--- a/textattack/transformations/word_swaps/word_swap_qwerty.py
+++ b/textattack/transformations/word_swaps/word_swap_qwerty.py
@@ -90,10 +90,12 @@ def _get_replacement_words(self, word):
 
         if self.random_one:
             i = random.randrange(start_idx, end_idx + 1)
-            candidate_word = (
-                word[:i] + random.choice(self._get_adjacent(word[i])) + word[i + 1 :]
-            )
-            candidate_words.append(candidate_word)
+            adjacent_chars = self._get_adjacent(word[i])
+            if len(adjacent_chars) > 0:
+                candidate_word = (
+                    word[:i] + random.choice(adjacent_chars) + word[i + 1 :]
+                )
+                candidate_words.append(candidate_word)
         else:
             for i in range(start_idx, end_idx + 1):
                 for swap_key in self._get_adjacent(word[i]):