diff --git a/arch/x86/kernel/cpu/intel_rdt_monitor.c b/arch/x86/kernel/cpu/intel_rdt_monitor.c
index 30827510094befb37aec9be1b356201a3644dd5e..681450eee428b8b07f9fb3a3b1fd5551a5c18cec 100644
--- a/arch/x86/kernel/cpu/intel_rdt_monitor.c
+++ b/arch/x86/kernel/cpu/intel_rdt_monitor.c
@@ -51,7 +51,7 @@ static LIST_HEAD(rmid_free_lru);
  *     may have a occupancy value > intel_cqm_threshold. User can change
  *     the threshold occupancy value.
  */
-unsigned int rmid_limbo_count;
+static unsigned int rmid_limbo_count;
 
 /**
  * @rmid_entry - The entry in the limbo and free lists.