diff --git a/lib/tamarin.py b/lib/tamarin.py
index de1bfb8..0d9d150 100644
--- a/lib/tamarin.py
+++ b/lib/tamarin.py
@@ -52,8 +52,9 @@ def get_workspace_subdir(subdir):
 def run(cmd, captureOutput=False, pty=False, debug=False, **kwargs):
     """Execute an arbitrary command on the system"""
     if debug:
-        print(" ".join(cmd))
+        print(" ".join(cmd) if isinstance(cmd, list) else cmd)
     stdin=subprocess.PIPE
+    kwargs['shell'] = False if isinstance(cmd, list) else True
     if pty:
         kwargs['stdin'] = sys.stdin
     if captureOutput:
@@ -62,4 +63,8 @@ def run(cmd, captureOutput=False, pty=False, debug=False, **kwargs):
         return subprocess.check_call(cmd, **kwargs)
 
 def run_docker(args, captureOutput=False, **kwargs):
-    return run(["docker"] + args, captureOutput=captureOutput, **kwargs)
+    if isinstance(args, list):
+        cmd = ["docker"] + args
+    else:
+        cmd = "docker " + args
+    return run(cmd, captureOutput=captureOutput, **kwargs)
diff --git a/package b/package
index 4d95fe7..d02b2ce 100755
--- a/package
+++ b/package
@@ -21,6 +21,7 @@ def create_args_parser():
     parser.add_argument("--rebuild", help="Ignore cache and rebuild container's image", action="store_true", default=False)
     parser.add_argument("--debug", help="Will add extra output and start the container in interactive mode", action="store_true", default=False)
     parser.add_argument("--cleanup", help="Clear the workspace and remove obsolete Docker images before build", action="store_true", default=False)
+    parser.add_argument("--override-docker-args", help="Override all 'docker run' arguments. Use '[IMAGE_TAG]', '[PROFILE]' and '[ARCH]' to insert the corresponding values into your command.", default="")
 
     return parser
 
@@ -63,8 +64,6 @@ if __name__ == "__main__":
     parser = create_args_parser()
     args = parser.parse_args()
 
-    validate_args(args)
-
     if args.cleanup:
         cleanup(debug=args.debug)
 
@@ -84,32 +83,41 @@ if __name__ == "__main__":
 
     image_tag = build_image(build_workspace, base_image, args.profile, profile,  debug=args.debug, rebuild=args.rebuild)
 
-    # rkt run arguments
-    docker_args = [
-        "run",
-        "--rm",
-        "-v", "{:s}:/src:ro".format(project_dir),
-        "-v", "{:s}:/dist".format(output_dir),
-        "-v", "{:s}:/tamarin/hooks:ro".format(tamarin.get_hooks_dir()),
-        "-v", "{:s}:/tamarin/lib:ro".format(tamarin.get_lib_dir()),
-        "-v", "{:s}:/tamarin/profiles:ro".format(tamarin.get_profiles_dir())
-    ]
-
-    # Use environment proxy if defined
-    for proxy_var in ['HTTP_PROXY', 'HTTPS_PROXY', 'http_proxy', 'https_proxy']:
-        if proxy_var in os.environ:
-            docker_args += ["-e", "{:s}={:s}".format(proxy_var, os.environ[proxy_var])]
-
     kwargs = dict()
     kwargs['debug'] = args.debug
 
-    if args.debug:
-        kwargs['pty'] = True
-        docker_args += ["-it", image_tag, "/bin/sh"]
-        helper_cmd = " ".join(["/usr/bin/python3", "/tamarin/lib/build.py", args.profile, args.architecture])
-        print("Executer '{:s}' pour lancer la construction du paquet.".format(helper_cmd))
+    docker_args = []
+
+    # Append custom arguments
+    if args.override_docker_args != "":
+        docker_args = args.override_docker_args.replace('[IMAGE_TAG]', image_tag)
+        docker_args = docker_args.replace('[PROFILE]', args.profile)
+        docker_args = docker_args.replace('[ARCH]', args.architecture)
     else:
-        docker_args += [image_tag, "/usr/bin/python3", "/tamarin/lib/build.py", args.profile, args.architecture]
+
+        docker_args += [ "run", "--rm" ]
+
+        # volumes definition
+        docker_args += [
+            "-v", "{:s}:/src:ro".format(project_dir),
+            "-v", "{:s}:/dist".format(output_dir),
+            "-v", "{:s}:/tamarin/hooks:ro".format(tamarin.get_hooks_dir()),
+            "-v", "{:s}:/tamarin/lib:ro".format(tamarin.get_lib_dir()),
+            "-v", "{:s}:/tamarin/profiles:ro".format(tamarin.get_profiles_dir())
+        ]
+
+        # Use environment proxy if defined
+        for proxy_var in ['HTTP_PROXY', 'HTTPS_PROXY', 'http_proxy', 'https_proxy']:
+            if proxy_var in os.environ:
+                docker_args += ["-e", "{:s}={:s}".format(proxy_var, os.environ[proxy_var])]
+
+        if args.debug:
+            kwargs['pty'] = True
+            docker_args += ["-it", image_tag, "/bin/sh"]
+            helper_cmd = " ".join(["/usr/bin/python3", "/tamarin/lib/build.py", args.profile, args.architecture])
+            print("Executer '{:s}' pour lancer la construction du paquet.".format(helper_cmd))
+        else:
+            docker_args += [image_tag, "/usr/bin/python3", "/tamarin/lib/build.py", args.profile, args.architecture]
 
     # Start container
     tamarin.run_docker(docker_args, **kwargs)