diff --git a/include/plat/arm/soc/common/soc_css.h b/include/plat/arm/soc/common/soc_css.h
index 58f0f09..5f97cde 100644
--- a/include/plat/arm/soc/common/soc_css.h
+++ b/include/plat/arm/soc/common/soc_css.h
@@ -37,7 +37,7 @@
 void soc_css_init_nic400(void);
 void soc_css_init_pcie(void);
 
-inline void soc_css_security_setup(void)
+static inline void soc_css_security_setup(void)
 {
 	soc_css_init_nic400();
 	soc_css_init_pcie();