diff --git a/data/registers/rcc_l4.yaml b/data/registers/rcc_l4.yaml
index 86b66ca..382b04b 100644
--- a/data/registers/rcc_l4.yaml
+++ b/data/registers/rcc_l4.yaml
@@ -872,10 +872,6 @@ fieldset/APB1SMENR1:
     bit_size: 1
     description: USART2 clocks enable during Sleep and Stop modes
     name: USART2SMEN
-  - bit_offset: 17
-    bit_size: 1
-    description: USART1 clocks enable during Sleep and Stop modes
-    name: USART1SMEN
   - bit_offset: 18
     bit_size: 1
     description: USART3 clocks enable during Sleep and Stop modes
@@ -886,7 +882,7 @@ fieldset/APB1SMENR1:
     name: UART4SMEN
   - bit_offset: 19
     bit_size: 1
-    description: USART2 clocks enable during Sleep and Stop modes
+    description: USART4 clocks enable during Sleep and Stop modes
     name: USART4SMEN
   - bit_offset: 20
     bit_size: 1