diff --git a/src/bin/pg_basebackup/pg_basebackup.c b/src/bin/pg_basebackup/pg_basebackup.c
new file mode 100644
index fbf7106..349bd90
*** a/src/bin/pg_basebackup/pg_basebackup.c
--- b/src/bin/pg_basebackup/pg_basebackup.c
*************** tablespace_list_append(const char *arg)
*** 199,204 ****
--- 199,207 ----
  		exit(1);
  	}
  
+ 	canonicalize_path(cell->old_dir);
+ 	canonicalize_path(cell->new_dir);
+ 
  	if (tablespace_dirs.tail)
  		tablespace_dirs.tail->next = cell;
  	else