diff --git a/plat/common/aarch64/plat_common.c b/plat/common/aarch64/plat_common.c
index 5c240a8..409ae55 100644
--- a/plat/common/aarch64/plat_common.c
+++ b/plat/common/aarch64/plat_common.c
@@ -124,6 +124,6 @@
 
 	ERROR("Unhandled External Abort received on 0x%lx at EL3!\n",
 			read_mpidr_el1());
-	ERROR(" exception reason=%u syndrome=0x%lx\n", ea_reason, syndrome);
+	ERROR(" exception reason=%u syndrome=0x%llx\n", ea_reason, syndrome);
 	panic();
 }