diff --git a/lib/ftl/ftl_core.c b/lib/ftl/ftl_core.c
index 7e578fd6b..c1ff799d8 100644
--- a/lib/ftl/ftl_core.c
+++ b/lib/ftl/ftl_core.c
@@ -211,6 +211,7 @@ ftl_wptr_from_band(struct ftl_band *band)
 		}
 	}
 
+	assert(false);
 	return NULL;
 }
 
diff --git a/lib/ftl/ftl_restore.c b/lib/ftl/ftl_restore.c
index dfc04f091..393d16e62 100644
--- a/lib/ftl/ftl_restore.c
+++ b/lib/ftl/ftl_restore.c
@@ -1273,5 +1273,6 @@ ftl_restore_device(struct ftl_restore *restore, ftl_restore_fn cb)
 
 	/* If restore_device is called, there must be at least one valid band */
 	rband = ftl_restore_next_band(restore);
+	assert(rband);
 	return ftl_restore_tail_md(rband);
 }