diff --git a/Dockerfile b/Dockerfile
index 329db70..055d23d 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -17,4 +17,10 @@ WORKDIR /home/compnet
 
 COPY . /home/compnet/
 
+RUN rm /home/compnet/chat_client_check/client.py \
+    /home/compnet/dns_check/dns.py \
+    /home/compnet/server_check/server.py \
+    /home/compnet/http_server_check/server.py \
+    /home/compnet/unreliable_chat_check/client.py
+
 RUN pip install -r requirements.txt
diff --git a/chat_client_check/check.py b/chat_client_check/check.py
index 6642980..4013c66 100644
--- a/chat_client_check/check.py
+++ b/chat_client_check/check.py
@@ -9,6 +9,8 @@
 SERVER_ADDRESS = '127.0.0.1'
 SERVER_PORT = 5378
 
+STUDENT_FILE_PATH = "../student/chat_client_check/client.py"
+
 class TestException(Exception):
     pass
 
@@ -84,7 +86,7 @@ def execute_and_detach(cmd):
 
 def start_script():
     expected_output = 'Welcome to Chat Client. Enter your login:'
-    client_process = pexpect.spawn(f'python3 client.py --address "{SERVER_ADDRESS}" --port {SERVER_PORT}', encoding='utf-8')
+    client_process = pexpect.spawn(f'python3 {STUDENT_FILE_PATH} --address "{SERVER_ADDRESS}" --port {SERVER_PORT}', encoding='utf-8')
 
     output_buffer = handle_pexpect(client_process, [client_process], expected_output, "", "starting client script")
 
@@ -264,7 +266,7 @@ def check_name():
     return client_process, output_buffer
 
 def verify_file_for_sendall():
-    file_path = os.path.join(os.getcwd(), "client.py")
+    file_path = os.path.join(os.getcwd(), STUDENT_FILE_PATH)
 
     try:
         with open(file_path, 'r') as file:
diff --git a/dns_check/check.py b/dns_check/check.py
index 211b675..00cf784 100644
--- a/dns_check/check.py
+++ b/dns_check/check.py
@@ -7,6 +7,7 @@
 SERVER_ADDRESS = '127.0.0.1'
 SERVER_PORT = 8000
 IPV4ONLY = False
+STUDENT_FILE_PATH = "../student/dns_check/dns.py"
 
 class TestException(Exception):
     pass
@@ -41,7 +42,7 @@ def handle_pexpect(child_process, processes_to_terminate, expect_string, output_
     return output_buffer
 
 def start_server():
-    return execute_and_detach(f'python3 dns.py --ipv4only {IPV4ONLY} --address {SERVER_ADDRESS} --port {SERVER_PORT}')
+    return execute_and_detach(f'python3 {STUDENT_FILE_PATH} --ipv4only {IPV4ONLY} --address {SERVER_ADDRESS} --port {SERVER_PORT}')
 
 
 def execute_and_detach(cmd):
diff --git a/http_server_check/check.py b/http_server_check/check.py
index 5f659c9..a942078 100644
--- a/http_server_check/check.py
+++ b/http_server_check/check.py
@@ -12,6 +12,7 @@
 
 SERVER_ADDRESS = "127.0.0.1"
 SERVER_PORT = 8000
+STUDENT_FILE_PATH = "../student/http_server_check/server.py"
 
 def generate_name():
     return ''.join(random.choice(string.ascii_letters) for _ in range(random.randint(8, 16)))
@@ -68,7 +69,7 @@ def handle_requests_request(page_path, data):
         raise TestException(f'error when requesting {page_path} with method POST: {e}')
 
 def start_server():
-    server_process = execute_and_detach(f'python3 server.py --address {SERVER_ADDRESS} --port {SERVER_PORT}')
+    server_process = execute_and_detach(f'python3 {STUDENT_FILE_PATH} --address {SERVER_ADDRESS} --port {SERVER_PORT}')
     EXPECTED_OUTPUT = f'Serving HTTP on port {SERVER_PORT}'
 
     output_buffer = handle_pexpect(server_process, [server_process], EXPECTED_OUTPUT, "", "starting a server")
diff --git a/server_check/check.py b/server_check/check.py
index d75c977..aec3cf4 100644
--- a/server_check/check.py
+++ b/server_check/check.py
@@ -10,6 +10,7 @@
 CLIENT_FOLDER_PATH = './'
 ADDRESS = "127.0.0.1"
 PORT = 5378
+STUDENT_FILE_PATH = "../student/server_check/server.py"
 
 def generate_name():
     return ''.join(random.choice(string.ascii_letters) for _ in range(random.randint(8, 16)))
@@ -50,7 +51,7 @@ def handle_pexpect(child_process, processes_to_terminate, expect_string, output_
     return output_buffer
 
 def start_server():
-    server_process = execute_and_detach(f'python3 server.py --address "{ADDRESS}" --port {PORT}')
+    server_process = execute_and_detach(f'python3 {STUDENT_FILE_PATH} --address "{ADDRESS}" --port {PORT}')
     expected_output = "Server is on"
 
     output_buffer = handle_pexpect(server_process, [server_process], expected_output, "", "starting a server")
@@ -281,7 +282,7 @@ def send_message_to_unknown():
     return client_process, output_buffer
 
 def verify_file_for_sendall():
-    file_path = os.path.join(os.getcwd(), "server.py")
+    file_path = os.path.join(os.getcwd(), STUDENT_FILE_PATH)
 
     try:
         with open(file_path, 'r') as file:
diff --git a/unreliable_chat_check/check.py b/unreliable_chat_check/check.py
index 316d378..31c8383 100644
--- a/unreliable_chat_check/check.py
+++ b/unreliable_chat_check/check.py
@@ -13,6 +13,7 @@ class TestException(Exception):
 SERVER_DIRECTORY = "./"
 SERVER_ADDRESS = "127.0.0.1"
 SERVER_PORT = 5382
+STUDENT_FILE_PATH = "../student/unreliable_chat_check/client.py"
 
 def generate_name():
     return ''.join(random.choice(string.ascii_letters) for _ in range(random.randint(8, 16)))
@@ -88,7 +89,7 @@ def execute_and_detach(cmd):
 
 def start_script():
     expected_output = f'Welcome to Chat Client. Enter your login:'
-    client_process = pexpect.spawn(f'python3 client.py --address "{SERVER_ADDRESS}" --port {SERVER_PORT}', encoding='utf-8')
+    client_process = pexpect.spawn(f'python3 {STUDENT_FILE_PATH} --address "{SERVER_ADDRESS}" --port {SERVER_PORT}', encoding='utf-8')
 
     output_buffer = handle_pexpect(client_process, [client_process], f'{expected_output}', "", "starting the client script")
 
@@ -272,7 +273,7 @@ def check_name():
     return client_process, output_buffer
 
 def verify_file_for_sendall():
-    file_path = os.path.join(os.getcwd(), "client.py")
+    file_path = os.path.join(os.getcwd(), STUDENT_FILE_PATH)
 
     try:
         with open(file_path, 'r') as file: