diff --git a/bus/activation-helper.c b/bus/activation-helper.c
index 5b6a0908..afe57fd3 100644
--- a/bus/activation-helper.c
+++ b/bus/activation-helper.c
@@ -32,6 +32,7 @@
 #include "activation-helper.h"
 #include "activation-exit-codes.h"
 
+#include <errno.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -43,6 +44,7 @@
 #include <dbus/dbus-misc.h>
 #include <dbus/dbus-shell.h>
 #include <dbus/dbus-marshal-validate.h>
+#include <dbus/dbus-sysdeps-unix.h>
 
 static BusDesktopFile *
 desktop_file_for_name (BusConfigParser *parser,
@@ -337,11 +339,17 @@ exec_for_correct_user (char *exec, char *user, DBusError *error)
   char **argv;
   int argc;
   dbus_bool_t retval;
+  const char *error_str = NULL;
 
   argc = 0;
   retval = TRUE;
   argv = NULL;
 
+  /* Resetting the OOM score adjustment is best-effort, so we don't
+   * treat a failure to do so as fatal. */
+  if (!_dbus_reset_oom_score_adj (&error_str))
+    _dbus_warn ("%s: %s", error_str, strerror (errno));
+
   if (!switch_user (user, error))
     return FALSE;