diff --git a/lib/DebugInfo/PDB/Raw/PDBDbiStream.cpp b/lib/DebugInfo/PDB/Raw/PDBDbiStream.cpp
index 38f92178a87..9c8b814d2b2 100644
--- a/lib/DebugInfo/PDB/Raw/PDBDbiStream.cpp
+++ b/lib/DebugInfo/PDB/Raw/PDBDbiStream.cpp
@@ -115,7 +115,7 @@ std::error_code PDBDbiStream::reload() {
     return std::make_error_code(std::errc::illegal_byte_sequence);
 
   std::error_code EC;
-  if (EC = readSubstream(ModInfoSubstream, Header->ModiSubstreamSize))
+  if ((EC = readSubstream(ModInfoSubstream, Header->ModiSubstreamSize)))
     return EC;
 
   // Since each ModInfo in the stream is a variable length, we have to iterate