diff --git a/include/plat/arm/common/arm_config.h b/include/plat/arm/common/arm_config.h
index 48fb33b..0b16127 100644
--- a/include/plat/arm/common/arm_config.h
+++ b/include/plat/arm/common/arm_config.h
@@ -55,7 +55,7 @@
 /* If used, arm_config must be defined and populated in the platform port */
 extern arm_config_t arm_config;
 
-inline const arm_config_t *get_arm_config(void)
+static inline const arm_config_t *get_arm_config(void)
 {
 	return &arm_config;
 }
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();