diff --git a/curiosrc/ffi/sdr_funcs.go b/curiosrc/ffi/sdr_funcs.go
index f532861ac4c..575f494550a 100644
--- a/curiosrc/ffi/sdr_funcs.go
+++ b/curiosrc/ffi/sdr_funcs.go
@@ -632,7 +632,6 @@ func (sb *SealCalls) PreFetch(ctx context.Context, sector storiface.SectorRef, t
 }
 
 func (sb *SealCalls) TreeD(ctx context.Context, sector storiface.SectorRef, unsealed cid.Cid, size abi.PaddedPieceSize, data io.Reader, unpaddedData bool, fspaths, pathIDs storiface.SectorPaths, release func()) error {
-	defer release()
 	var err error
 	defer func() {
 		if err != nil {