diff --git a/tools/command-lines.in b/tools/command-lines.in
index 150f57267..3a449ef8d 100644
--- a/tools/command-lines.in
+++ b/tools/command-lines.in
@@ -1221,7 +1221,7 @@ ID: lvrename_lv_lv
 lvresize --size SSizeMB LV
 OO: --alloc Alloc, --autobackup Bool, --force,
 --nofsck, --nosync, --noudevsync, --reportformat ReportFmt, --resizefs,
---stripes Number, --stripesize SizeKB, --poolmetadatasize SSizeMB,
+--stripes Number, --stripesize SizeKB, --poolmetadatasize PSizeMB,
 --type SegType
 OP: PV ...
 ID: lvresize_by_size
@@ -1235,7 +1235,7 @@ OO: --alloc Alloc, --autobackup Bool, --force,
 ID: lvresize_by_pv
 DESC: Resize an LV by specified PV extents.
 
-lvresize --poolmetadatasize SSizeMB LV_thinpool
+lvresize --poolmetadatasize PSizeMB LV_thinpool
 OO: --alloc Alloc, --autobackup Bool, --force,
 --nofsck, --nosync, --noudevsync,
 --reportformat ReportFmt, --stripes Number, --stripesize SizeKB,
diff --git a/tools/command.c b/tools/command.c
index 1f314689d..88b7216e9 100644
--- a/tools/command.c
+++ b/tools/command.c
@@ -1534,10 +1534,10 @@ int define_commands(char *run_name)
 void configure_command_option_values(const char *name)
 {
 	if (!strcmp(name, "lvresize")) {
-		/* relative +|- allowed */
+		/* relative +|- allowed for LV, + allowed for metadata */
 		opt_names[size_ARG].val_enum = ssizemb_VAL;
 		opt_names[extents_ARG].val_enum = sextents_VAL;
-		opt_names[poolmetadatasize_ARG].val_enum = ssizemb_VAL;
+		opt_names[poolmetadatasize_ARG].val_enum = psizemb_VAL;
 		return;
 	}