diff --git a/mcu/st_stm32f103xb.yaml b/mcu/st_stm32f103xb.yaml
index 457e552..623ee7b 100644
--- a/mcu/st_stm32f103xb.yaml
+++ b/mcu/st_stm32f103xb.yaml
@@ -600,8 +600,8 @@ properties:
 
 schematic:
   symbol: IC
-  left: PORTA, PORTB, CTRL
-  right: PORTC, PORTD, PORTE
+  left: PORTA, PORTD, CTRL
+  right: PORTB, PORTC, PORTE
   top: POWER
   bottom: GROUND