diff --git a/README.md b/README.md
index eb636007a68d8ce0c937fca8627ac2b08ad0b341..147d4f1c386447d05f29da2bb8dd4dbee7cf1da4 100644
--- a/README.md
+++ b/README.md
@@ -61,8 +61,8 @@ Supported images:
 - openharmony-image-base
 - openharmony-image-extra
 
-Supported machines:
-- qemux86-64 (default)
+Supported machines (default in **bold**):
+- **qemux86-64**
 - qemux86
 - qemuarm
 - qemuarm64
@@ -103,8 +103,8 @@ Supported images:
 - Zephyr comes with multiple sample applications. Take a look into `sources/meta-zephyr/recipes-kernel/zephyr-kernel/` to see available recipes.
 Nothing prevents you to add your own recipes to [use sample applications provided with Zephyr](https://github.com/zephyrproject-rtos/zephyr/tree/master/samples) or to add your own applications.
 
-Supported machines:
-- qemu-x86 (default)
+Supported machines (default in **bold**):
+- **qemu-x86**
 - qemu-cortex-m3
 - 96b-nitrogen (96Boards Nitrogen)
 - 96b-avenger96 (96Boards Avenger96)
@@ -138,8 +138,8 @@ OHOS FreeRTOS flavour is based on _freertos_ distribution and supports following
 Supported images:
 - freertos-demo
 
-Supported machines:
-- qemuarmv5
+Supported machines (default in **bold**):
+- **qemuarmv5**
 
 Example:
 
diff --git a/flavours/linux/conf-notes.txt b/flavours/linux/conf-notes.txt
index 8251e708ae4e60a78965536ff909cf91e74e44a3..92ded018f812a6b4092fd6cf4e0ae525393916a5 100644
--- a/flavours/linux/conf-notes.txt
+++ b/flavours/linux/conf-notes.txt
@@ -7,8 +7,8 @@ Supported targets:
 - openharmony-image-base
 - openharmony-image-extra
 
-Supported machines:
-- qemux86-64 (default)
+Supported machines (first is the default):
+- qemux86-64
 - qemux86
 - qemuarm
 - qemuarm64
diff --git a/flavours/zephyr/conf-notes.txt b/flavours/zephyr/conf-notes.txt
index d628ac4a19f8365e56f95952ba4b9037b10eb6fc..bf58ac9dc6eaccb16b6af10ef704f6cf51a3ab1f 100644
--- a/flavours/zephyr/conf-notes.txt
+++ b/flavours/zephyr/conf-notes.txt
@@ -3,8 +3,8 @@
 
 You can now run 'bitbake zephyr-philosophers'
 
-Supported machines:
-- qemu-x86 (default)
+Supported machines (first is the default):
+- qemu-x86
 - qemu-cortex-m3
 - 96b-nitrogen (96Boards Nitrogen)
 - 96b-avenger96 (96Boards Avenger96)