diff --git a/htdocs/core/db/mssql.class.php b/htdocs/core/db/mssql.class.php
index 4c1fd583e8f..9067effca1d 100644
--- a/htdocs/core/db/mssql.class.php
+++ b/htdocs/core/db/mssql.class.php
@@ -587,9 +587,9 @@ class DoliDBMssql
 	}
 
 	/**
-	 *	Formate a SQL IF
+	 *	Format a SQL IF
 	 *
-	 *	@param	string	$test           chaine test
+	 *	@param	string	$test           Test string (example: 'cd.statut=0', 'field IS NULL')
 	 *	@param	string	$resok          resultat si test egal
 	 *	@param	string	$resko          resultat si test non egal
 	 *	@return	string          		SQL string
diff --git a/htdocs/core/db/mysql.class.php b/htdocs/core/db/mysql.class.php
index 40144071add..d8f18d2971c 100644
--- a/htdocs/core/db/mysql.class.php
+++ b/htdocs/core/db/mysql.class.php
@@ -562,9 +562,9 @@ class DoliDBMysql
 	}
 
 	/**
-	 *	Formate a SQL IF
+	 *	Format a SQL IF
 	 *
-	 *	@param	string	$test           chaine test
+	 *	@param	string	$test           Test string (example: 'cd.statut=0', 'field IS NULL')
 	 *	@param	string	$resok          resultat si test egal
 	 *	@param	string	$resko          resultat si test non egal
 	 *	@return	string          		SQL string
diff --git a/htdocs/core/db/mysqli.class.php b/htdocs/core/db/mysqli.class.php
index 36f89aaea96..55cf0168bf4 100644
--- a/htdocs/core/db/mysqli.class.php
+++ b/htdocs/core/db/mysqli.class.php
@@ -572,9 +572,9 @@ class DoliDBMysqli
     }
 
     /**
-     *  Formate a SQL IF
+     *  Format a SQL IF
      *
-	 *	@param	string	$test           chaine test
+	 *	@param	string	$test           Test string (example: 'cd.statut=0', 'field IS NULL')
 	 *	@param	string	$resok          resultat si test egal
 	 *	@param	string	$resko          resultat si test non egal
      *	@return	string          		SQL string
diff --git a/htdocs/core/db/pgsql.class.php b/htdocs/core/db/pgsql.class.php
index 956869e7221..ca74e4384bc 100644
--- a/htdocs/core/db/pgsql.class.php
+++ b/htdocs/core/db/pgsql.class.php
@@ -758,9 +758,9 @@ class DoliDBPgsql
 	}
 
 	/**
-     *  Formate a SQL IF
+     *  Format a SQL IF
      *
-	 *  @param	string	$test           chaine test
+	 *  @param	string	$test           Test string (example: 'cd.statut=0', 'field IS NULL')
 	 *  @param	string	$resok          resultat si test egal
 	 *  @param	string	$resko          resultat si test non egal
 	 *  @return	string          		chaine formate SQL
diff --git a/htdocs/core/db/sqlite.class.php b/htdocs/core/db/sqlite.class.php
index 415fcde9dee..06d1a460976 100644
--- a/htdocs/core/db/sqlite.class.php
+++ b/htdocs/core/db/sqlite.class.php
@@ -702,9 +702,9 @@ class DoliDBSqlite
     }
 
 	/**
-	 *	Formate a SQL IF
+	 *	Format a SQL IF
 	 *
-	 *	@param	string	$test           chaine test
+	 *	@param	string	$test           Test string (example: 'cd.statut=0', 'field IS NULL')
 	 *	@param	string	$resok          resultat si test egal
 	 *	@param	string	$resko          resultat si test non egal
 	 *	@return	string          		SQL string