diff --git a/README.md b/README.md
index 4f896e0..534ddb4 100644
--- a/README.md
+++ b/README.md
@@ -54,6 +54,7 @@ cargo test
 * [x] Add namespace for variables
 * [x] Custom env name
 * [x] Support feature config and other meta directives
+* [ ] Add default value to env if env is not found
 * [ ] Concat env variables to one variable
 
 
diff --git a/itconfig/README.md b/itconfig/README.md
index 7b87e3e..b77ac4e 100644
--- a/itconfig/README.md
+++ b/itconfig/README.md
@@ -44,6 +44,7 @@ fn main () {
 * [x] Add namespace for variables
 * [x] Custom env name
 * [x] Support feature config and other meta directives
+* [ ] Add default value to env if env is not found
 * [ ] Concat env variables to one variable