diff --git a/commands.h b/commands.h
index 64988e78..1124f2e8 100644
--- a/commands.h
+++ b/commands.h
@@ -108,3 +108,6 @@ int cmd_replace(int argc, char **argv);
 
 /* subvolume exported functions */
 int test_issubvolume(char *path);
+
+/* send.c */
+int find_mount_root(const char *path, char **mount_root);