diff --git a/README.md b/README.md
index bc4adc52b..d17a257b2 100644
--- a/README.md
+++ b/README.md
@@ -117,7 +117,6 @@ To do
 - ls
 - make-prime-list
 - md5sum
-- mkdir
 - mkfifo
 - mknod
 - mktemp
diff --git a/cat/test.rs b/cat/test.rs
index 3c17b6c31..1cfddfddf 100644
--- a/cat/test.rs
+++ b/cat/test.rs
@@ -4,6 +4,7 @@ fn main() {
     test_output_multi_files_print_all_chars();
     test_stdin_squeeze();
     test_stdin_number_non_blank();
+    println("cat tests completed successfully!\n");
 }
 
 fn test_output_multi_files_print_all_chars() {
diff --git a/mkdir/test.rs b/mkdir/test.rs
index 299550e51..5bcff8e0a 100644
--- a/mkdir/test.rs
+++ b/mkdir/test.rs
@@ -11,6 +11,7 @@ fn main() {
     test_mkdir_mode();
     test_mkdir_parent();
     test_mkdir_no_parent();
+    println("mkdir tests completed successfully!\n");
 }
 
 fn cleanup() {