diff --git a/README.md b/README.md
index 39f165be1..715b1a3c9 100644
--- a/README.md
+++ b/README.md
@@ -1224,9 +1224,10 @@ Checks if the provided integer is a prime number.
 Returns `false` if the provided number has positive divisors other than 1 and itself or if the number itself is less than 2.
 
 ```js
-const isPrime = num =>
+const isPrime = num => {
   for (var i = 2; i < num; i++) if (num % i == 0) return false;
   return num >= 2;
+}
 // isPrime(11) -> true
 // isPrime(12) -> false
 // isPrime(1) -> false
diff --git a/docs/index.html b/docs/index.html
index 7648b07e7..d0bd32993 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -765,9 +765,10 @@ Returns <code>true</code> if the number is even, <code>false</code> if the numbe
 </div></div><br/><div class="card fluid"><div class="section double-padded"><h3 id="isprime">isPrime</h3></div><div class="section double-padded">
 <p>Checks if the provided integer is a prime number.</p>
 <p>Returns <code>false</code> if the provided number has positive divisors other than 1 and itself or if the number itself is less than 2.</p>
-<pre><code class="language-js">const isPrime = num =&gt;
+<pre><code class="language-js">const isPrime = num =&gt; {
   for (var i = 2; i &lt; num; i++) if (num % i == 0) return false;
   return num &gt;= 2;
+}
 // isPrime(11) -&gt; true
 // isPrime(12) -&gt; false
 // isPrime(1) -&gt; false
diff --git a/snippets/isPrime.md b/snippets/isPrime.md
index b372f057f..cc1f69b14 100644
--- a/snippets/isPrime.md
+++ b/snippets/isPrime.md
@@ -5,9 +5,10 @@ Checks if the provided integer is a prime number.
 Returns `false` if the provided number has positive divisors other than 1 and itself or if the number itself is less than 2.
 
 ```js
-const isPrime = num =>
+const isPrime = num => {
   for (var i = 2; i < num; i++) if (num % i == 0) return false;
   return num >= 2;
+}
 // isPrime(11) -> true
 // isPrime(12) -> false
 // isPrime(1) -> false