diff --git a/exporter/containerimage/attestations.go b/exporter/containerimage/attestations.go
index 680be58596d9..c9eef91c0c4a 100644
--- a/exporter/containerimage/attestations.go
+++ b/exporter/containerimage/attestations.go
@@ -43,7 +43,8 @@ func supplementSBOM(ctx context.Context, s session.Group, target cache.Immutable
 
 	doc, err := decodeSPDX(content)
 	if err != nil {
-		return att, err
+		// ignore decoding error
+		return att, nil
 	}
 
 	layers, err := newFileLayerFinder(target, targetRemote)