diff --git a/lib/CodeGen/AsmPrinter/DwarfException.cpp b/lib/CodeGen/AsmPrinter/DwarfException.cpp
index 5f48181..c4db7d3 100644
--- a/lib/CodeGen/AsmPrinter/DwarfException.cpp
+++ b/lib/CodeGen/AsmPrinter/DwarfException.cpp
@@ -451,7 +451,8 @@
   }
 
   // Begin the exception table.
-  Asm->OutStreamer.SwitchSection(LSDASection);
+  if (LSDASection)
+    Asm->OutStreamer.SwitchSection(LSDASection);
   Asm->EmitAlignment(2);
 
   // Emit the LSDA.