diff --git a/doc/development/compressed_state_table.md b/doc/development/compressed_state_table/main.md
similarity index 98%
rename from doc/development/compressed_state_table.md
rename to doc/development/compressed_state_table/main.md
index eb2584ee..9000de86 100644
--- a/doc/development/compressed_state_table.md
+++ b/doc/development/compressed_state_table/main.md
@@ -179,8 +179,8 @@ next_state = yydefgoto[lhs_id]
 
 ## Example
 
-Take a look at compressed tables of "compressed_state_table.y".
-See "compressed_state_table.output" for detailed information of symbols and states.
+Take a look at compressed tables of "parse.y".
+See "parse.output" for detailed information of symbols and states.
 
 ### `yytable`
 
@@ -324,7 +324,7 @@ yypgoto = [
 Because `0` is reserved for syntax error, Rule id starts with 1.
 
 ```
-# In "compressed_state_table.output"
+# In "parse.output"
 Grammar
 
     0 $accept: program "end of file"
@@ -356,7 +356,7 @@ Grammar
 ```
 
 For example, default action for state 1 is 4 (`yydefact[1] == 4`).
-This means Rule 3 (`3 expr: NUM`) in "compressed_state_table.output" file.
+This means Rule 3 (`3 expr: NUM`) in "parse.output" file.
 
 `yydefgoto` specifies next state id of the nonterminal.
 
diff --git a/doc/development/compressed_state_table.output b/doc/development/compressed_state_table/parse.output
similarity index 100%
rename from doc/development/compressed_state_table.output
rename to doc/development/compressed_state_table/parse.output
diff --git a/doc/development/compressed_state_table.y b/doc/development/compressed_state_table/parse.y
similarity index 100%
rename from doc/development/compressed_state_table.y
rename to doc/development/compressed_state_table/parse.y
diff --git a/doc/development/compressed_state_table_parser.rb b/doc/development/compressed_state_table/parser.rb
similarity index 100%
rename from doc/development/compressed_state_table_parser.rb
rename to doc/development/compressed_state_table/parser.rb