diff --git a/exercises/practice/alphametics/.meta/example.ex b/exercises/practice/alphametics/.meta/example.ex
index 662570c206..dd78c79d70 100644
--- a/exercises/practice/alphametics/.meta/example.ex
+++ b/exercises/practice/alphametics/.meta/example.ex
@@ -35,7 +35,7 @@ defmodule Alphametics do
     Enum.find_value(numbers, fn number ->
       leading_zero? = number == 0 && letter in problem.first_letters
 
-      unless leading_zero? do
+      if !leading_zero? do
         numbers = List.delete(numbers, number)
         solution = put_in(solution[letter], number)
         solve(letters, numbers, solution, problem)
diff --git a/exercises/practice/largest-series-product/.meta/example.ex b/exercises/practice/largest-series-product/.meta/example.ex
index a3b2f9228d..35edca2e65 100644
--- a/exercises/practice/largest-series-product/.meta/example.ex
+++ b/exercises/practice/largest-series-product/.meta/example.ex
@@ -25,7 +25,7 @@ defmodule Series do
   end
 
   def largest_product(number_string, size) do
-    unless Enum.member?(Range.new(0, String.length(number_string)), size) do
+    if not Enum.member?(Range.new(0, String.length(number_string)), size) do
       raise ArgumentError
     end