diff --git a/classes/db/DBMysql.class.php b/classes/db/DBMysql.class.php
index d496ed435..4ec3a45e9 100644
--- a/classes/db/DBMysql.class.php
+++ b/classes/db/DBMysql.class.php
@@ -180,7 +180,7 @@
             $query = sprintf("insert into `%ssequence` (seq) values ('0')", $this->prefix);
             $this->_query($query);
             $sequence = mysql_insert_id();
-            if($seqnece % 10000 == 0) {
+            if($sequence % 10000 == 0) {
               $query = sprintf("delete from  `%ssequence` where seq < %d", $this->prefix, $sequence);
               $this->_query($query);
             }
diff --git a/classes/db/DBMysql_innodb.class.php b/classes/db/DBMysql_innodb.class.php
index 8a06c8d4d..c8d6199d1 100644
--- a/classes/db/DBMysql_innodb.class.php
+++ b/classes/db/DBMysql_innodb.class.php
@@ -189,7 +189,7 @@
             $query = sprintf("insert into `%ssequence` (seq) values ('0')", $this->prefix);
             $this->_query($query);
             $sequence = mysql_insert_id();
-            if($seqnece % 10000 == 0) {
+            if($sequence % 10000 == 0) {
               $query = sprintf("delete from  `%ssequence` where seq < %d", $this->prefix, $sequence);
               $this->_query($query);
             }
diff --git a/classes/db/DBSqlite2.class.php b/classes/db/DBSqlite2.class.php
index 6b110809e..8ea701a61 100644
--- a/classes/db/DBSqlite2.class.php
+++ b/classes/db/DBSqlite2.class.php
@@ -175,7 +175,7 @@
             $query = sprintf("insert into %ssequence (seq) values ('')", $this->prefix);
             $this->_query($query);
             $sequence = sqlite_last_insert_rowid($this->fd);
-            if($seqnece % 10000 == 0) {
+            if($sequence % 10000 == 0) {
               $query = sprintf("delete from  %ssequence where seq < %d", $this->prefix, $sequence);
               $this->_query($query);
             }
diff --git a/classes/db/DBSqlite3_pdo.class.php b/classes/db/DBSqlite3_pdo.class.php
index a8c2dec28..dea4dff7b 100644
--- a/classes/db/DBSqlite3_pdo.class.php
+++ b/classes/db/DBSqlite3_pdo.class.php
@@ -196,7 +196,7 @@
             $this->_prepare($query);
             $result = $this->_execute();
             $sequence = $this->handler->lastInsertId();
-            if($seqnece % 10000 == 0) {
+            if($sequence % 10000 == 0) {
               $query = sprintf("delete from  %ssequence where seq < %d", $this->prefix, $sequence);
               $this->_prepare($query);
               $result = $this->_execute();