diff --git a/access-control/bin/cat b/access-control/bin/cat
deleted file mode 120000
index 513b3070..00000000
--- a/access-control/bin/cat
+++ /dev/null
@@ -1 +0,0 @@
-/bin/cat
\ No newline at end of file
diff --git a/access-control/bin/cp b/access-control/bin/cp
deleted file mode 120000
index 4fe8dfb0..00000000
--- a/access-control/bin/cp
+++ /dev/null
@@ -1 +0,0 @@
-/bin/cp
\ No newline at end of file
diff --git a/access-control/level-4/bin/cat b/access-control/level-4/bin/cat
deleted file mode 120000
index 33784bce..00000000
--- a/access-control/level-4/bin/cat
+++ /dev/null
@@ -1 +0,0 @@
-../../bin/cat
\ No newline at end of file
diff --git a/access-control/level-5/bin/cp b/access-control/level-5/bin/cp
deleted file mode 120000
index 5a0ad27a..00000000
--- a/access-control/level-5/bin/cp
+++ /dev/null
@@ -1 +0,0 @@
-../../bin/cp
\ No newline at end of file
diff --git a/access-control/run b/access-control/run
index 803a8b6c..fb577c79 100755
--- a/access-control/run
+++ b/access-control/run
@@ -236,7 +236,10 @@ def level4():
     print("Before:")
     os.system(f"/bin/ls -la /bin/cat")
 
+    # create a symlink
     os.chmod("/bin/cat", 0o4755)
+    os.mkdir("/challenge/bin")
+    os.symlink("/bin/cat", "/challenge/bin/cat")
 
     print("After:")
     os.system(f"/bin/ls -la /bin/cat")
@@ -256,6 +259,8 @@ def level5():
     os.system(f"/bin/ls -la /bin/cp")
 
     os.chmod("/bin/cp", 0o4755)
+    os.mkdir("/challenge/bin")
+    os.symlink("/bin/cp", "/challenge/bin/cp")
 
     print("After:")
     os.system(f"/bin/ls -la /bin/cp")