diff --git a/lib/Support/Triple.cpp b/lib/Support/Triple.cpp
index dd5c3d6..279bd43 100644
--- a/lib/Support/Triple.cpp
+++ b/lib/Support/Triple.cpp
@@ -48,6 +48,7 @@
   case DragonFly: return "dragonfly";
   case FreeBSD: return "freebsd";
   case Linux: return "linux";
+  case OpenBSD: return "openbsd";
   }
 
   return "<invalid>";
@@ -90,6 +91,8 @@
     OS = FreeBSD;
   else if (memcmp(&OSName[0], "linux", 5) == 0)
     OS = Linux;
+  else if (memcmp(&OSName[0], "openbsd", 7) == 0)
+    OS = OpenBSD;
   else
     OS = UnknownOS;