diff --git a/bundles/octoprint/metadata.py b/bundles/octoprint/metadata.py
index 812b840..6d0028a 100644
--- a/bundles/octoprint/metadata.py
+++ b/bundles/octoprint/metadata.py
@@ -6,6 +6,9 @@ defaults = {
                 '/usr/bin/vcgencmd',
                 '/opt/octoprint/systemd-wrapper',
             },
+            'groups': {
+                'gpio',
+            },
         },
     },
 }