diff --git a/plat/juno/platform.mk b/plat/juno/platform.mk
index 14b62b3..b487ebf 100644
--- a/plat/juno/platform.mk
+++ b/plat/juno/platform.mk
@@ -68,3 +68,8 @@
 				plat/juno/plat_gic.c			\
 				plat/juno/scpi.c			\
 				plat/juno/smc_arm.c
+
+ifneq (${RESET_TO_BL31},0)
+  $(error "Using BL3-1 as the reset vector is not supported on Juno. \
+  Please set RESET_TO_BL31 to 0.")
+endif