diff --git a/lib/Bitcode/Reader/BitcodeReader.cpp b/lib/Bitcode/Reader/BitcodeReader.cpp
index ea446d4..aabbc90 100644
--- a/lib/Bitcode/Reader/BitcodeReader.cpp
+++ b/lib/Bitcode/Reader/BitcodeReader.cpp
@@ -1657,6 +1657,9 @@
       case bitc::METADATA_ATTACHMENT_ID:
         if (ParseMetadataAttachment()) return true;
         break;
+      case bitc::METADATA_BLOCK_ID:
+        if (ParseMetadata()) return true;
+        break;
       }
       continue;
     }