diff --git a/lib/metadata/metadata.c b/lib/metadata/metadata.c
index 5981b305c..22d2dcf60 100644
--- a/lib/metadata/metadata.c
+++ b/lib/metadata/metadata.c
@@ -12,7 +12,7 @@
 
 #include <string.h>
 
-struct physical_volume *pv_create(const char *name, struct io_space *ios)
+struct physical_volume *pv_create(struct io_space *ios, const char *name)
 {
 	struct physical_volume *pv = pool_alloc(ios->mem, sizeof(*pv));
 
diff --git a/lib/metadata/metadata.h b/lib/metadata/metadata.h
index 9ecf5515a..0085c8468 100644
--- a/lib/metadata/metadata.h
+++ b/lib/metadata/metadata.h
@@ -193,7 +193,7 @@ struct io_space {
 /*
  * Utility functions
  */
-struct physical_volume *pv_create(const char *name, struct io_space *ios);
+struct physical_volume *pv_create(struct io_space *ios, const char *name);