diff --git a/htdocs/core/db/pgsql.class.php b/htdocs/core/db/pgsql.class.php
index 8e57b29109e..392e0998d6b 100644
--- a/htdocs/core/db/pgsql.class.php
+++ b/htdocs/core/db/pgsql.class.php
@@ -152,6 +152,7 @@ class DoliDBPgsql extends DoliDB
      */
 	static function convertSQLFromMysql($line,$type='auto',$unescapeslashquot=false)
 	{
+		global $conf;
 		// Removed empty line if this is a comment line for SVN tagging
 		if (preg_match('/^--\s\$Id/i',$line)) {
 			return '';
@@ -311,7 +312,14 @@ class DoliDBPgsql extends DoliDB
             }
 
             // To have postgresql case sensitive
-            $line=str_replace(' LIKE \'',' ILIKE \'',$line);
+			$count_like=0;
+			$line=str_replace(' LIKE \'',' ILIKE \'',$line,$count_like);
+			if (!empty($conf->global->PSQL_USE_UNACCENT) && $count_like > 0)
+			{
+				// @see https://docs.postgresql.fr/11/unaccent.html : 'unaccent()' function must be installed before
+				$line=preg_replace('/\s+(\(?\s*)([a-zA-Z0-9\-\_\.]+) ILIKE /', ' \1unaccent(\2) ILIKE ', $line);
+			}
+
             $line=str_replace(' LIKE BINARY \'',' LIKE \'',$line);
 
             // Replace INSERT IGNORE into INSERT