diff --git a/lib/xlat_tables/aarch32/nonlpae_tables.c b/lib/xlat_tables/aarch32/nonlpae_tables.c
index 5646f34..f582404 100644
--- a/lib/xlat_tables/aarch32/nonlpae_tables.c
+++ b/lib/xlat_tables/aarch32/nonlpae_tables.c
@@ -272,7 +272,7 @@
 	/* Make room for new region by moving other regions up by one place */
 	(void)memmove(mm + 1, mm, (uintptr_t)mm_last - (uintptr_t)mm);
 
-	/* Check we haven't lost the empty sentinal from the end of the array */
+	/* Check we haven't lost the empty sentinel from the end of the array */
 	assert(mm_last->size == 0U);
 
 	mm->base_pa = base_pa;
diff --git a/lib/xlat_tables/xlat_tables_common.c b/lib/xlat_tables/xlat_tables_common.c
index 71273cb..e2c8370 100644
--- a/lib/xlat_tables/xlat_tables_common.c
+++ b/lib/xlat_tables/xlat_tables_common.c
@@ -161,7 +161,7 @@
 	/* Make room for new region by moving other regions up by one place */
 	(void)memmove(mm + 1, mm, (uintptr_t)mm_last - (uintptr_t)mm);
 
-	/* Check we haven't lost the empty sentinal from the end of the array */
+	/* Check we haven't lost the empty sentinel from the end of the array */
 	assert(mm_last->size == 0U);
 
 	mm->base_pa = base_pa;