diff --git a/simple_backup/simple_backup.py b/simple_backup/simple_backup.py
index 99b333f..77df8dd 100755
--- a/simple_backup/simple_backup.py
+++ b/simple_backup/simple_backup.py
@@ -508,7 +508,8 @@ class Backup:
                 if not os.path.exists(i):
                     logger.warning('Input %s not found. Skipping', i)
                 else:
-                    fp.write(i)
+                    # rsync reads --files-from paths relative to the source ('/')
+                    fp.write(os.path.abspath(i))
                     fp.write('\n')
                     count += 1