diff --git a/test/Regression/Assembler/2005-05-05-OpaqueUndefValues.ll b/test/Regression/Assembler/2005-05-05-OpaqueUndefValues.ll
new file mode 100644
index 00000000000..9321d3bf30b
--- /dev/null
+++ b/test/Regression/Assembler/2005-05-05-OpaqueUndefValues.ll
@@ -0,0 +1,4 @@
+; RUN: llvm-as < %s | llvm-dis | llvm-as
+
+%t = type opaque
+%x = global %t undef