diff --git a/plat/arm/css/sgi/sgi-common.mk b/plat/arm/css/sgi/sgi-common.mk
index 46fa7c4..613d3d5 100644
--- a/plat/arm/css/sgi/sgi-common.mk
+++ b/plat/arm/css/sgi/sgi-common.mk
@@ -47,7 +47,7 @@
 endif
 
 ifneq (${RESET_TO_BL31},0)
-  $(error "Using BL31 as the reset vector is not supported on ${PLATFORM} platform. \
+  $(error "Using BL31 as the reset vector is not supported on ${PLAT} platform. \
   Please set RESET_TO_BL31 to 0.")
 endif
 
diff --git a/plat/arm/css/sgm/sgm-common.mk b/plat/arm/css/sgm/sgm-common.mk
index 3eb4840..ddeac68 100644
--- a/plat/arm/css/sgm/sgm-common.mk
+++ b/plat/arm/css/sgm/sgm-common.mk
@@ -46,7 +46,7 @@
 				${CSS_SGM_BASE}/sgm_plat_config.c
 
 ifneq (${RESET_TO_BL31},0)
-  $(error "Using BL31 as the reset vector is not supported on ${PLATFORM} platform. \
+  $(error "Using BL31 as the reset vector is not supported on ${PLAT} platform. \
   Please set RESET_TO_BL31 to 0.")
 endif