diff --git a/go_design_pattern_book/concurrent_pattern/barrier/main.go b/concurrency/barrier/main.go
similarity index 100%
rename from go_design_pattern_book/concurrent_pattern/barrier/main.go
rename to concurrency/barrier/main.go
diff --git a/go_design_pattern_book/concurrent_pattern/barrier/main_test.go b/concurrency/barrier/main_test.go
similarity index 100%
rename from go_design_pattern_book/concurrent_pattern/barrier/main_test.go
rename to concurrency/barrier/main_test.go