diff --git a/bl31/bl31_main.c b/bl31/bl31_main.c
index c8cc2c7..9807817 100644
--- a/bl31/bl31_main.c
+++ b/bl31/bl31_main.c
@@ -83,7 +83,7 @@
 /*******************************************************************************
  * Simple function to initialise all BL31 helper libraries.
  ******************************************************************************/
-void __init bl31_lib_init(void)
+static void __init bl31_lib_init(void)
 {
 	cm_init();
 }