diff --git a/bus/services/org.freedesktop.IBus.session.GNOME.service.in b/bus/services/org.freedesktop.IBus.session.GNOME.service.in
index 7f718e3c9..858cf10da 100644
--- a/bus/services/org.freedesktop.IBus.session.GNOME.service.in
+++ b/bus/services/org.freedesktop.IBus.session.GNOME.service.in
@@ -18,7 +18,7 @@ Conflicts=gnome-session@gnome-login.target
 [Service]
 Type=dbus
 # Only pull --xim in X11 session, it is done via Xwayland-session.d on Wayland
-ExecStart=sh -c '@bindir@/ibus-daemon --panel disable $([ "$XDG_SESSION_TYPE" = "x11" ] && echo "--xim")'
+ExecStart=sh -c 'exec @bindir@/ibus-daemon --panel disable $([ "$XDG_SESSION_TYPE" = "x11" ] && echo "--xim")'
 Restart=on-abnormal
 BusName=org.freedesktop.IBus
 TimeoutStopSec=5
diff --git a/bus/services/org.freedesktop.IBus.session.generic.service.in b/bus/services/org.freedesktop.IBus.session.generic.service.in
index 9d4931598..e7b7ce4fa 100644
--- a/bus/services/org.freedesktop.IBus.session.generic.service.in
+++ b/bus/services/org.freedesktop.IBus.session.generic.service.in
@@ -7,8 +7,7 @@ Conflicts=gnome-session-initialized.target
 
 [Service]
 Type=dbus
-# Only pull --xim in X11 session, it is done via Xwayland-session.d on Wayland
-ExecStart=sh -c '@bindir@/ibus-daemon $IBUS_DAEMON_ARGS'
+ExecStart=sh -c 'exec @bindir@/ibus-daemon $IBUS_DAEMON_ARGS'
 Restart=on-abnormal
 BusName=org.freedesktop.IBus
 TimeoutStopSec=5