diff --git a/README.md b/README.md
index 2f8d23c..59d5204 100644
--- a/README.md
+++ b/README.md
@@ -38,7 +38,7 @@ fn main() {
         data: None
     };
     conn.execute("INSERT INTO person (name, time_created, data)
-                  VALUES ($1, $2, $3)",
+                  VALUES (?1, ?2, ?3)",
                  &[&me.name, &me.time_created, &me.data]).unwrap();
 
     let mut stmt = conn.prepare("SELECT id, name, time_created, data FROM person").unwrap();
diff --git a/src/lib.rs b/src/lib.rs
index 50cf7e9..d429308 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -32,7 +32,7 @@
 //!         data: None
 //!     };
 //!     conn.execute("INSERT INTO person (name, time_created, data)
-//!                   VALUES ($1, $2, $3)",
+//!                   VALUES (?1, ?2, ?3)",
 //!                  &[&me.name, &me.time_created, &me.data]).unwrap();
 //!
 //!     let mut stmt = conn.prepare("SELECT id, name, time_created, data FROM person").unwrap();