diff --git a/tools/run-mypy b/tools/run-mypy
index a82532ee93..c0857b7479 100755
--- a/tools/run-mypy
+++ b/tools/run-mypy
@@ -23,8 +23,6 @@ parser.add_argument('targets', nargs='*',
                     help="files and directories to check (default: .)")
 parser.add_argument('--version', action='store_true',
                     help="show mypy version information and exit")
-parser.add_argument('--quick', action='store_true',
-                    help="pass --quick to mypy")
 parser.add_argument('-m', '--modified', action='store_true',
                     help="check only modified files")
 parser.add_argument('--scripts-only', action='store_true',
@@ -68,11 +66,7 @@ if not python_files and not pyi_files:
     print("There are no files to run mypy on.")
     sys.exit(0)
 
-extra_args = []
-if args.quick:
-    extra_args.append("--quick")
-
-mypy_args = extra_args + python_files + pyi_files
+mypy_args = python_files + pyi_files
 rc = subprocess.call([mypy_command] + mypy_args)
 
 if rc != 0: