diff --git a/boards/arm/stm32/stm32f103-minimum/src/stm32_lcd_backpack.c b/boards/arm/stm32/stm32f103-minimum/src/stm32_lcd_backpack.c
index b6484041faf..5a3fb13fdc8 100644
--- a/boards/arm/stm32/stm32f103-minimum/src/stm32_lcd_backpack.c
+++ b/boards/arm/stm32/stm32f103-minimum/src/stm32_lcd_backpack.c
@@ -105,7 +105,7 @@ int stm32_lcd_backpack_init(FAR const char *devpath)
   ret = i2c_register(i2c, LCDBP_I2C_PORTNO);
   if (ret < 0)
     {
-      rtcerr("ERROR: Failed to register I2C%d driver: %d\n", bus, ret);
+      rtcerr("ERROR: Failed to register I2C driver: %d\n", ret);
       return -ENODEV;
     }
 #endif