diff --git a/zsh/.profile b/zsh/.profile
index a84a45a..8db89e5 100644
--- a/zsh/.profile
+++ b/zsh/.profile
@@ -11,4 +11,11 @@ export PATH
 export XDG_CONFIG_HOME="${HOME}/.config"
 export XDG_DATA_HOME="${HOME}/.local/share"
 
+## Dbus
+
+# Make the session bus address fixed so other processes can know where
+# to find it.
+DBUS_SESSION_BUS_ADDRESS="unix:path=/run/user/$(id -u)/bus"
+export DBUS_SESSION_BUS_ADDRESS
+
 systemctl --user import-environment PATH