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-rw-r--r--krebs/4lib/types.nix4
1 files changed, 3 insertions, 1 deletions
diff --git a/krebs/4lib/types.nix b/krebs/4lib/types.nix
index 0d5b51f76..be0acd584 100644
--- a/krebs/4lib/types.nix
+++ b/krebs/4lib/types.nix
@@ -342,7 +342,9 @@ types // rec {
absolute-pathname = mkOptionType {
name = "POSIX absolute pathname";
check = x: let xs = splitString "/" x; xa = head xs; in
- isString x && (xa == "/" || (xa == "" && all filename.check (tail xs)));
+ isString x
+ && stringLength x > 0
+ && (xa == "/" || (xa == "" && all filename.check (tail xs)));
merge = mergeOneOption;
};