diff --git a/examples/adc_cont.rs b/examples/adc_cont.rs
index 4e500a8e..2b2377c4 100644
--- a/examples/adc_cont.rs
+++ b/examples/adc_cont.rs
@@ -43,7 +43,7 @@ fn main() -> ! {
     // Initialize USART for test output
     let (mut tx, _) = dp.USART2
         .usart(
-            (tx, rx),
+            tx, rx,
             serial::Config::default()
                 .baudrate(115_200.bps()),
             &mut rcc,
diff --git a/examples/adc_multi.rs b/examples/adc_multi.rs
index baa1f2fa..606fa54e 100644
--- a/examples/adc_multi.rs
+++ b/examples/adc_multi.rs
@@ -44,7 +44,7 @@ fn main() -> ! {
     // Initialize USART for test output
     let (mut tx, _) = dp.USART2
         .usart(
-            (tx, rx),
+            tx, rx,
             serial::Config::default()
                 .baudrate(115_200.bps()),
             &mut rcc,
diff --git a/examples/adc_trig.rs b/examples/adc_trig.rs
index 060ed4ff..c941ff07 100644
--- a/examples/adc_trig.rs
+++ b/examples/adc_trig.rs
@@ -47,7 +47,7 @@ fn main() -> ! {
     // Initialize USART for test output
     let (mut tx, _) = dp.USART2
         .usart(
-            (tx, rx),
+            tx, rx,
             serial::Config::default()
                 .baudrate(115_200.bps()),
             &mut rcc,