diff --git a/system/database/DB_utility.php b/system/database/DB_utility.php
index aff3cf8..4562b97 100644
--- a/system/database/DB_utility.php
+++ b/system/database/DB_utility.php
@@ -320,15 +320,15 @@
 
 		// Set up our default preferences
 		$prefs = array(
-				'tables'				=> array(),
-				'ignore'				=> array(),
-				'filename'				=> '',
-				'format'				=> 'gzip', // gzip, zip, txt
-				'add_drop'				=> TRUE,
-				'add_insert'			=> TRUE,
-				'newline'				=> "\n",
-				'foreign_key_checks'	=> TRUE
-			);
+			'tables'		=> array(),
+			'ignore'		=> array(),
+			'filename'		=> '',
+			'format'		=> 'gzip', // gzip, zip, txt
+			'add_drop'		=> TRUE,
+			'add_insert'		=> TRUE,
+			'newline'		=> "\n",
+			'foreign_key_checks'	=> TRUE
+		);
 
 		// Did the user submit any preferences? If so set them....
 		if (count($params) > 0)
diff --git a/system/database/drivers/mysql/mysql_utility.php b/system/database/drivers/mysql/mysql_utility.php
index f118033..94ef95a 100644
--- a/system/database/drivers/mysql/mysql_utility.php
+++ b/system/database/drivers/mysql/mysql_utility.php
@@ -80,7 +80,7 @@
 		// Do we need to include a statement to disable foreign key checks?
 		if ($foreign_key_checks === FALSE)
 		{
-			$output .= "SET foreign_key_checks = 0;".$newline;
+			$output .= 'SET foreign_key_checks = 0;'.$newline;
 		}
 
 		foreach ( (array) $tables as $table)
@@ -191,7 +191,7 @@
 		// Do we need to include a statement to re-enable foreign key checks?
 		if ($foreign_key_checks === FALSE)
 		{
-			$output .= "SET foreign_key_checks = 1;".$newline;
+			$output .= 'SET foreign_key_checks = 1;'.$newline;
 		}
 
 		return $output;
diff --git a/system/database/drivers/mysqli/mysqli_utility.php b/system/database/drivers/mysqli/mysqli_utility.php
index 2edf38c..f6688bc 100644
--- a/system/database/drivers/mysqli/mysqli_utility.php
+++ b/system/database/drivers/mysqli/mysqli_utility.php
@@ -80,7 +80,7 @@
 		// Do we need to include a statement to disable foreign key checks?
 		if ($foreign_key_checks === FALSE)
 		{
-			$output .= "SET foreign_key_checks = 0;".$newline;
+			$output .= 'SET foreign_key_checks = 0;'.$newline;
 		}
 
 		foreach ( (array) $tables as $table)
@@ -191,7 +191,7 @@
 		// Do we need to include a statement to re-enable foreign key checks?
 		if ($foreign_key_checks === FALSE)
 		{
-			$output .= "SET foreign_key_checks = 1;".$newline;
+			$output .= 'SET foreign_key_checks = 1;'.$newline;
 		}
 
 		return $output;