diff --git a/lib/Support/Path.cpp b/lib/Support/Path.cpp
index 59c37987127..d5a0ec55c68 100644
--- a/lib/Support/Path.cpp
+++ b/lib/Support/Path.cpp
@@ -1065,7 +1065,7 @@ std::error_code identify_magic(const Twine &Path, file_magic &Result) {
 
   char Buffer[32];
   int Length = read(FD, Buffer, sizeof(Buffer));
-  if (Length < 0)
+  if (close(FD) != 0 || Length < 0)
     return std::error_code(errno, std::generic_category());
 
   Result = identify_magic(StringRef(Buffer, Length));