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-rw-r--r--src/libstore/filetransfer.cc2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/libstore/filetransfer.cc b/src/libstore/filetransfer.cc
index f3e8a5312..10c810e49 100644
--- a/src/libstore/filetransfer.cc
+++ b/src/libstore/filetransfer.cc
@@ -337,7 +337,7 @@ struct curlFileTransfer : public FileTransfer
// wrapping user `callback`s instead is not possible because the
// Callback api expects std::functions, and copying Callbacks is
// not possible due the promises they hold.
- if (code == CURLE_OK && !dataCallback) {
+ if (code == CURLE_OK && !dataCallback && result.data.length() > 0) {
result.data = decompress(encoding, result.data);
}