diff --git a/libbcachefs/opts.h b/libbcachefs/opts.h
index 4d063130..8b25a82f 100644
--- a/libbcachefs/opts.h
+++ b/libbcachefs/opts.h
@@ -525,8 +525,8 @@ enum fsck_err_opts {
 	  OPT_FS|OPT_MOUNT|OPT_RUNTIME,					\
 	  OPT_BOOL(),							\
 	  BCH2_NO_SB_OPT,		true,				\
-	  NULL,		"BTREE_ITER_prefetch casuse btree nodes to be\n"\
-	  " prefetched sequentially")
+	  NULL,		"BTREE_ITER_prefetch causes btree nodes to be\n"\
+	  "prefetched sequentially")
 
 struct bch_opts {
 #define x(_name, _bits, ...)	unsigned _name##_defined:1;