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-rw-r--r--server-tools/instance-manager/guardian.cc2
1 files changed, 1 insertions, 1 deletions
diff --git a/server-tools/instance-manager/guardian.cc b/server-tools/instance-manager/guardian.cc
index ac3e6298ea1..7375453673b 100644
--- a/server-tools/instance-manager/guardian.cc
+++ b/server-tools/instance-manager/guardian.cc
@@ -110,7 +110,7 @@ int Guardian_thread::start()
Instance_map::Iterator iterator(instance_map);
instance_map->lock();
- while (instance= iterator.next())
+ while ((instance= iterator.next()))
{
if ((instance->options.is_guarded != NULL) && (instance->is_running()))
if (guard(instance))