diff --git a/bin/pull-request-coverage.sh b/bin/pull-request-coverage.sh
index e0e69a72..35824690 100644
--- a/bin/pull-request-coverage.sh
+++ b/bin/pull-request-coverage.sh
@@ -1,9 +1,14 @@
 #!/bin/bash
 
+echo "Getting pull request head branch..."
+export PHPUNIT_HEAD_BRANCH=$(curl -H "Accept: application/vnd.github.v3+json" https://api.github.com/repos/PluginAndPartners/cart-magento2/pulls/${PR_NUMBER} \
+| jq ".head.ref" \
+| xargs)
+
 echo "Getting pull request files..."
 export PHPUNIT_FILES=$(curl -H "Accept: application/vnd.github.v3+json" https://api.github.com/repos/PluginAndPartners/cart-magento2/pulls/${PR_NUMBER}/files \
 | jq ".[].filename" \
 | grep -E  'php"$' \
 | xargs)
 
-php magento2/app/code/MercadoPago/Test/pull-request-coverage-checker.php clover.xml 40 $PHPUNIT_FILES
+php magento2/app/code/MercadoPago/Test/pull-request-coverage-checker.php clover.xml 40 $PHPUNIT_HEAD_BRANCH $PHPUNIT_FILES
diff --git a/src/MercadoPago/Test/pull-request-coverage-checker.php b/src/MercadoPago/Test/pull-request-coverage-checker.php
index fb15a51b..6979a9a0 100644
--- a/src/MercadoPago/Test/pull-request-coverage-checker.php
+++ b/src/MercadoPago/Test/pull-request-coverage-checker.php
@@ -1,56 +1,109 @@
 <?php
 
-$cloverFile       = $argv[1];
-$percentage       = min(100, max(0, (int) $argv[2]));
-$pullRequestFiles = [];
+function get_elements($cloverFile, $pullRequestFiles) {
+    $xml             = new SimpleXMLElement(file_get_contents($cloverFile));
+    $classes         = $xml->xpath('//class');
+    $totalElements   = 0;
+    $checkedElements = 0;
 
-for ($i = 3; $i < count($argv); $i++) {
-    $filename = str_replace('src/', '', $argv[$i]);
-    $filename = str_replace('/', '\\', $filename);
-    $filename = str_replace('.php', '', $filename);
+    foreach ($classes as $class) {
+        if (in_array($class['name'], $pullRequestFiles)) {
+            $totalElements   += (int) $class->metrics['elements'];
+            $checkedElements += (int) $class->metrics['coveredelements'];
+        }
+    }
 
-    $pullRequestFiles[] = $filename;
+    return [
+        'totalElements'   => $totalElements,
+        'checkedElements' => $checkedElements,
+    ];
 }
 
-if (!file_exists($cloverFile)) {
-    throw new InvalidArgumentException('Invalid clover file provided');
-}
+function parse_pull_request_files($argv) {
+    $pullRequestFiles = [];
+
+    for ($i = 4; $i < count($argv); $i++) {
+        $filename = str_replace('src/', '', $argv[$i]);
+        $filename = str_replace('/', '\\', $filename);
+        $filename = str_replace('.php', '', $filename);
+
+        if (is_testable($filename)) {
+            $pullRequestFiles[] = $filename;
+            print_r($filename . ' is a testable file' . PHP_EOL);
+        }
+    }
 
-if (!$percentage) {
-    throw new InvalidArgumentException('An integer checked percentage must be given as second parameter');
+    return $pullRequestFiles;
 }
 
-if (count($pullRequestFiles) == 0) {
-    print_r('Pull Request does not contain any php file to check code coverage');
-    return;
+function is_testable($filename) {
+    // Add all untestable php files
+    $whitelist = [
+        'MercadoPago\Test\coverage-checker',
+        'MercadoPago\Test\pull-request-coverage-checker',
+    ];
+
+    return in_array($filename, $whitelist) ? false : true;
 }
 
-$xml             = new SimpleXMLElement(file_get_contents($cloverFile));
-$classes         = $xml->xpath('//class');
-$totalElements   = 0;
-$checkedElements = 0;
+function is_hotfix_branch($branchName) {
+    return strpos($branchName, 'hotfix');
+}
 
-foreach ($classes as $class) {
-    if (in_array($class['name'], $pullRequestFiles)) {
-        $totalElements   += (int) $class->metrics['elements'];
-        $checkedElements += (int) $class->metrics['coveredelements'];
+function validate_clover_file($cloverFile) {
+    if (!file_exists($cloverFile)) {
+        throw new InvalidArgumentException('Invalid clover file provided');
     }
 }
 
-if ($totalElements == 0 || $checkedElements == 0) {
-    print_r('Pull Request does not contain tested php files to check code coverage');
-    return;
+function validate_percentage_param($percentage) {
+    if (!$percentage) {
+        throw new InvalidArgumentException('An integer checked percentage must be given as second parameter');
+    }
 }
 
-$coverage = ($checkedElements / $totalElements) * 100;
+function validate_pull_request_coverage($totalElements, $checkedElements, $percentage) {
+    $coverage = ($checkedElements / $totalElements) * 100;
+
+    if ($coverage >= $percentage) {
+        print_r('Code coverage is ' . $coverage);
+        print_r(' -> Pull Request OK');
+        return;
+    }
 
-if ($coverage >= $percentage) {
-    print_r('Code coverage is ' . $coverage);
-    print_r(' -> Pull Request OK');
-    return;
+    print_r('Code coverage is ' . round($coverage, 2) . '%, which is below the accepted ' . $percentage . '%');
+    print_r(' -> Pull Request Rejected');
+
+    throw new Exception('Code coverage is ' . round($coverage, 2) . '%, which is below the accepted ' . $percentage . '%');
 }
 
-print_r('Code coverage is ' . round($coverage, 2) . '%, which is below the accepted ' . $percentage . '%');
-print_r(' -> Pull Request Rejected');
+function execute($argv) {
+    $branchName       = $argv[3];
+    $cloverFile       = $argv[1];
+    $percentage       = min(100, max(0, (int) $argv[2]));
+    $pullRequestFiles = parse_pull_request_files($argv);
+
+    if (!is_hotfix_branch($branchName)) {
+        validate_clover_file($cloverFile);
+        validate_percentage_param($percentage);
+
+        $elements        = get_elements($cloverFile, $pullRequestFiles);
+        $totalElements   = $elements['totalElements'];
+        $checkedElements = $elements['checkedElements'];
+
+        if ($totalElements == 0 || $checkedElements == 0) {
+            if (count($pullRequestFiles) === 0) {
+                print_r('Pull request does not contain testable files');
+                return;
+            }
+
+            throw new Exception('Pull Request does not contain tested php files to check code coverage');
+        }
+
+        validate_pull_request_coverage($totalElements, $checkedElements, $percentage);
+
+        return;
+    }
+}
 
-throw new Exception('Code coverage is ' . round($coverage, 2) . '%, which is below the accepted ' . $percentage . '%');
+execute($argv);