diff --git a/system/database/drivers/sqlite3/sqlite3_driver.php b/system/database/drivers/sqlite3/sqlite3_driver.php
index ea4cf2d..ea7e6d4 100644
--- a/system/database/drivers/sqlite3/sqlite3_driver.php
+++ b/system/database/drivers/sqlite3/sqlite3_driver.php
@@ -255,7 +255,7 @@
 	protected function _list_tables($prefix_limit = FALSE)
 	{
 		return 'SELECT "NAME" FROM "SQLITE_MASTER" WHERE "TYPE" = \'table\''
-			.(($prefix_limit !== FALSE && $this->dbprefix != '')
+			.(($prefix_limit !== FALSE && $this->dbprefix !== '')
 				? ' AND "NAME" LIKE \''.$this->escape_like_str($this->dbprefix).'%\' '.sprintf($this->_like_escape_str, $this->_like_escape_chr)
 				: '');
 	}
diff --git a/system/database/drivers/sqlite3/sqlite3_forge.php b/system/database/drivers/sqlite3/sqlite3_forge.php
index 20f1e6f..0a5dc92 100644
--- a/system/database/drivers/sqlite3/sqlite3_forge.php
+++ b/system/database/drivers/sqlite3/sqlite3_forge.php
@@ -184,7 +184,7 @@
 
 		return 'ALTER TABLE '.$this->db->protect_identifiers($table).' '.$alter_type.' '.$this->db->protect_identifiers($column_name)
 			.' '.$column_definition
-			.($default_value != '' ? ' DEFAULT '.$default_value : '')
+			.($default_value !== '' ? ' DEFAULT '.$default_value : '')
 			// If NOT NULL is specified, the field must have a DEFAULT value other than NULL
 			.(($null !== NULL && $default_value !== 'NULL') ? ' NOT NULL' : ' NULL');
 	}