diff --git a/system/libraries/Email.php b/system/libraries/Email.php
index 082629a..efdbfd7 100644
--- a/system/libraries/Email.php
+++ b/system/libraries/Email.php
@@ -399,9 +399,9 @@
 		else
 		{
 			$this->_smtp_auth = ! ($this->smtp_user === '' && $this->smtp_pass === '');
-			$this->_safe_mode = (bool) @ini_get('safe_mode');
 		}
 
+		$this->_safe_mode = ( ! is_php('5.4') && (bool) @ini_get('safe_mode'));
 		$this->charset = strtoupper($this->charset);
 
 		log_message('debug', 'Email Class Initialized');
@@ -451,7 +451,6 @@
 		$this->clear();
 
 		$this->_smtp_auth = ! ($this->smtp_user === '' && $this->smtp_pass === '');
-		$this->_safe_mode = (bool) @ini_get('safe_mode');
 
 		return $this;
 	}
diff --git a/system/libraries/Upload.php b/system/libraries/Upload.php
index 15eb74b..0609738 100644
--- a/system/libraries/Upload.php
+++ b/system/libraries/Upload.php
@@ -1245,7 +1245,7 @@
 				}
 			}
 
-			if ( (bool) @ini_get('safe_mode') === FALSE && function_usable('shell_exec'))
+			if ((bool) @ini_get('safe_mode') === FALSE && function_usable('shell_exec'))
 			{
 				$mime = @shell_exec($cmd);
 				if (strlen($mime) > 0)