diff --git a/releasenotes/notes/debug-mode-0dccdc3702c0590e.yaml b/releasenotes/notes/debug-mode-0dccdc3702c0590e.yaml
new file mode 100644
index 00000000..07003772
--- /dev/null
+++ b/releasenotes/notes/debug-mode-0dccdc3702c0590e.yaml
@@ -0,0 +1,5 @@
+---
+features:
+  - |
+    Adds an option --debug to enable debug mode when running sushy-emulator.
+
diff --git a/sushy_tools/emulator/main.py b/sushy_tools/emulator/main.py
index 20f1f64c..ce5bba3b 100755
--- a/sushy_tools/emulator/main.py
+++ b/sushy_tools/emulator/main.py
@@ -779,6 +779,8 @@ def parse_args():
                         type=str,
                         help='Config file path. Can also be set via '
                              'environment variable SUSHY_EMULATOR_CONFIG.')
+    parser.add_argument('--debug', action='store_true',
+                        help='Enables debug mode when running sushy-emulator.')
     parser.add_argument('-i', '--interface',
                         type=str,
                         help='IP address of the local interface to listen '
@@ -819,6 +821,8 @@ def main():
 
     args = parse_args()
 
+    app.debug = args.debug
+
     if args.config:
         app.config.from_pyfile(args.config)