diff --git a/embassy-stm32f4/src/serial.rs b/embassy-stm32f4/src/serial.rs
index 87d0caaa..381e0f5e 100644
--- a/embassy-stm32f4/src/serial.rs
+++ b/embassy-stm32f4/src/serial.rs
@@ -278,6 +278,6 @@ usart! {
 
     UART4 => (UART4),
     UART5 => (UART5),
-    UART7 => (UART7),
-    UART8 => (UART8),
+//    UART7 => (UART7),
+//    UART8 => (UART8),
 }