diff --git a/queries.md b/queries.md
index d8ac383..06bb096 100644
--- a/queries.md
+++ b/queries.md
@@ -15,7 +15,7 @@ FROM emails
     JOIN accounts ON emails.id = accounts.id
 WHERE 
     type = 'primary'
-    AND mail = ?
+    AND mail = $1
     AND password IS NOT NULL
 ```
 
@@ -28,14 +28,14 @@ SELECT NULL as member_of WHERE 1=0
 ## recipients
 
 ```sql
-    SELECT dest as name FROM alias WHERE alias = ?
+    SELECT dest as name FROM alias WHERE alias = $1
 UNION
     SELECT mail as name 
     FROM emails 
-    WHERE id = (SELECT id FROM emails WHERE type = 'list' AND mail = ?) 
+    WHERE id = (SELECT id FROM emails WHERE type = 'list' AND mail = $1) 
         AND type = 'primary'
 UNION
-    SELECT mail as name FROM emails WHERE mail = ?
+    SELECT mail as name FROM emails WHERE mail = $1
 ```
 
 ## emails
@@ -44,8 +44,8 @@ UNION
 SELECT mais as address 
 FROM emails
 WHERE
-    (id = (SELECT id FROM emails WHERE mail = ?) AND type = 'alias')
-    OR mail = ?
+    (id = (SELECT id FROM emails WHERE mail = $1) AND type = 'alias')
+    OR mail = $1
 ORDER BY type, mail
 ```
 
@@ -55,7 +55,7 @@ ORDER BY type, mail
 SELECT  mail as address 
 FROM emails 
 WHERE 
-    mail LIKE '%' || ? || '%' 
+    mail LIKE '%' || $1 || '%' 
     AND type = 'primary' 
 ORDER BY address 
 LIMIT 5
@@ -66,7 +66,7 @@ LIMIT 5
 ```sql
 SELECT recipient as address 
 FROM list_recipients 
-WHERE list = ? 
+WHERE list = $1 
 ORDER BY address 
 LIMIT 50
 ```
@@ -74,5 +74,5 @@ LIMIT 50
 ## domains
 
 ```sql
-SELECT 1 FROM emails WHERE mail LIKE '%@' || ? LIMIT 1
+SELECT 1 FROM emails WHERE mail LIKE '%@' || $1 LIMIT 1
 ```