diff --git a/lib/Target/Mips/MipsMCAsmInfo.cpp b/lib/Target/Mips/MipsMCAsmInfo.cpp
index fe48ab7..ca00463 100644
--- a/lib/Target/Mips/MipsMCAsmInfo.cpp
+++ b/lib/Target/Mips/MipsMCAsmInfo.cpp
@@ -24,4 +24,5 @@
   ZeroDirective               = "\t.space\t";
   GPRel32Directive            = "\t.gpword\t";
   HasSetDirective             = false;
+  WeakRefDirective            = "\t.weak\t";
 }
diff --git a/test/CodeGen/Mips/weak.ll b/test/CodeGen/Mips/weak.ll
new file mode 100644
index 0000000..09dd2a4
--- /dev/null
+++ b/test/CodeGen/Mips/weak.ll
@@ -0,0 +1,12 @@
+; RUN: llc -march=mips < %s | FileCheck %s
+
+@t = common global i32 (...)* null, align 4
+
+define void @f() nounwind {
+entry:
+  store i32 (...)* @test_weak, i32 (...)** @t, align 4
+  ret void
+}
+
+; CHECK: .weak test_weak
+declare extern_weak i32 @test_weak(...)