diff --git a/htdocs/core/db/mysqli.class.php b/htdocs/core/db/mysqli.class.php
index 99a778440b8..fe180d25503 100644
--- a/htdocs/core/db/mysqli.class.php
+++ b/htdocs/core/db/mysqli.class.php
@@ -979,10 +979,8 @@ class DoliDBMysqli extends DoliDB
 			$sql .= 'datetime';
 		}
 
-		if (isset($field_desc['value']) && preg_match("/^[^\s]/i", $field_desc['value'])) {
-			if (!in_array($field_desc['type'], array('tinyint', 'smallint', 'int', 'date', 'datetime', 'datetimegmt')) && $field_desc['value']) {
-				$sql .= "(".$this->sanitize($field_desc['value']).")";
-			}
+		if (in_array($field_desc['type'], array('double', 'int', 'varchar')) && array_key_exists('value', $field_desc) && !empty($field_desc['value'])) {
+			$sql .= "(".$this->sanitize($field_desc['value']).")";
 		}
 		if (isset($field_desc['attribute']) && preg_match("/^[^\s]/i", $field_desc['attribute'])) {
 			$sql .= " ".$this->sanitize($field_desc['attribute']);
@@ -1036,7 +1034,7 @@ class DoliDBMysqli extends DoliDB
 			$sql .= 'datetime';
 		}
 
-		if (in_array($field_desc['type'], array('double', 'tinyint', 'int', 'varchar')) && array_key_exists('value', $field_desc) && $field_desc['value']) {
+		if (in_array($field_desc['type'], array('double', 'int', 'varchar')) && array_key_exists('value', $field_desc) && !empty($field_desc['value'])) {
 			$sql .= "(".$this->sanitize($field_desc['value']).")";
 		}
 		if (isset($field_desc['null']) && ($field_desc['null'] == 'not null' || $field_desc['null'] == 'NOT NULL')) {
diff --git a/htdocs/core/db/pgsql.class.php b/htdocs/core/db/pgsql.class.php
index 7f674fe0c59..0ff88307051 100644
--- a/htdocs/core/db/pgsql.class.php
+++ b/htdocs/core/db/pgsql.class.php
@@ -1219,10 +1219,8 @@ class DoliDBPgsql extends DoliDB
 			$sql .= 'datetime';
 		}
 
-		if (isset($field_desc['value']) && preg_match("/^[^\s]/i", $field_desc['value'])) {
-			if (!in_array($field_desc['type'], array('tinyint', 'smallint', 'int', 'date', 'datetime', 'datetimegmt')) && $field_desc['value']) {
-				$sql .= "(".$this->sanitize($field_desc['value']).")";
-			}
+		if (in_array($field_desc['type'], array('varchar')) && array_key_exists('value', $field_desc) && !empty($field_desc['value'])) {
+			$sql .= "(".$this->sanitize($field_desc['value']).")";
 		}
 		if (isset($field_desc['attribute']) && preg_match("/^[^\s]/i", $field_desc['attribute'])) {
 			$sql .= " ".$this->sanitize($field_desc['attribute']);
@@ -1276,10 +1274,8 @@ class DoliDBPgsql extends DoliDB
 			$sql .= 'datetime';
 		}
 
-		if (isset($field_desc['value']) && preg_match("/^[^\s]/i", $field_desc['value'])) {
-			if (!in_array($field_desc['type'], array('smallint', 'int', 'date', 'datetime', 'datetimegmt')) && $field_desc['value']) {
-				$sql .= "(".$this->sanitize($field_desc['value']).")";
-			}
+		if (in_array($field_desc['type'], array('varchar')) && array_key_exists('value', $field_desc) && !empty($field_desc['value'])) {
+			$sql .= "(".$this->sanitize($field_desc['value']).")";
 		}
 
 		if (isset($field_desc['null']) && ($field_desc['null'] == 'not null' || $field_desc['null'] == 'NOT NULL')) {
diff --git a/htdocs/core/db/sqlite3.class.php b/htdocs/core/db/sqlite3.class.php
index 335c8f5e736..8b983c7a889 100644
--- a/htdocs/core/db/sqlite3.class.php
+++ b/htdocs/core/db/sqlite3.class.php
@@ -1114,11 +1114,15 @@ class DoliDBSqlite3 extends DoliDB
 		// cles recherchees dans le tableau des descriptions (field_desc) : type,value,attribute,null,default,extra
 		// ex. : $field_desc = array('type'=>'int','value'=>'11','null'=>'not null','extra'=> 'auto_increment');
 		$sql = "ALTER TABLE ".$table." ADD ".$field_name." ";
-		$sql .= $this->sanitize($field_desc['type']);
-		if (isset($field_desc['value']) && preg_match("/^[^\s]/i", $field_desc['value'])) {
-			if (!in_array($field_desc['type'], array('date', 'datetime'))) {
-				$sql .= "(".$this->sanitize($field_desc['value']).")";
-			}
+
+		if ($field_desc['type'] !== 'datetimegmt') {
+			$sql .= $this->sanitize($field_desc['type']);
+		} else {
+			$sql .= 'datetime';
+		}
+
+		if (in_array($field_desc['type'], array('double', 'int', 'varchar')) && array_key_exists('value', $field_desc) && !empty($field_desc['value'])) {
+			$sql .= "(".$this->sanitize($field_desc['value']).")";
 		}
 		if (isset($field_desc['attribute']) && preg_match("/^[^\s]/i", $field_desc['attribute'])) {
 			$sql .= " ".$this->sanitize($field_desc['attribute']);
@@ -1164,8 +1168,15 @@ class DoliDBSqlite3 extends DoliDB
 	{
 		// phpcs:enable
 		$sql = "ALTER TABLE ".$this->sanitize($table);
-		$sql .= " MODIFY COLUMN ".$this->sanitize($field_name)." ".$this->sanitize($field_desc['type']);
-		if ($field_desc['type'] == 'tinyint' || $field_desc['type'] == 'int' || $field_desc['type'] == 'varchar') {
+		$sql .= " MODIFY COLUMN ".$this->sanitize($field_name)." ";
+
+		if ($field_desc['type'] !== 'datetimegmt') {
+			$sql .= $this->sanitize($field_desc['type']);
+		} else {
+			$sql .= 'datetime';
+		}
+
+		if (in_array($field_desc['type'], array('double', 'int', 'varchar')) && array_key_exists('value', $field_desc) && !empty($field_desc['value'])) {
 			$sql .= "(".$this->sanitize($field_desc['value']).")";
 		}