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-rw-r--r--Backend.hs2
1 files changed, 1 insertions, 1 deletions
diff --git a/Backend.hs b/Backend.hs
index 40b618355..da7d9f6e1 100644
--- a/Backend.hs
+++ b/Backend.hs
@@ -94,7 +94,7 @@ chooseBackend f = Annex.getState Annex.forcebackend >>= go
lookupBackendVariety :: KeyVariety -> Backend
lookupBackendVariety v = fromMaybe unknown $ maybeLookupBackendVariety v
where
- unknown = error $ "unknown backend " ++ formatKeyVariety v
+ unknown = giveup $ "unknown backend " ++ formatKeyVariety v
maybeLookupBackendVariety :: KeyVariety -> Maybe Backend
maybeLookupBackendVariety v = M.lookup v varietyMap