diff --git a/installsystems/config.py b/installsystems/config.py
index a9cb958677beefcc79fff19d12c6baadf5241487..b5194040c5328b0c9f247b1940f4ce058149d37c 100644
--- a/installsystems/config.py
+++ b/installsystems/config.py
@@ -55,8 +55,8 @@ ionice_level = integer
 REPO_CONFIG_SPEC = """\
 [__many__]
     path = string
-    fmod = integer
-    dmod = integer
+    fmod = string
+    dmod = string
     uid = string
     gid = string
     offline = boolean