diff --git a/services/surfaceflinger/DisplayHardware/AidlComposerHal.cpp b/services/surfaceflinger/DisplayHardware/AidlComposerHal.cpp
index 8d67954..cfbdbd1 100644
--- a/services/surfaceflinger/DisplayHardware/AidlComposerHal.cpp
+++ b/services/surfaceflinger/DisplayHardware/AidlComposerHal.cpp
@@ -115,7 +115,7 @@
 AidlPerFrameMetadataBlob translate(IComposerClient::PerFrameMetadataBlob x) {
     AidlPerFrameMetadataBlob blob;
     blob.key = translate<AidlPerFrameMetadataKey>(x.key),
-    std::copy(blob.blob.begin(), blob.blob.end(), x.blob.begin());
+    std::copy(x.blob.begin(), x.blob.end(), std::inserter(blob.blob, blob.blob.end()));
     return blob;
 }