diff --git a/llvm/include/llvm/Target/DarwinTargetAsmInfo.h b/llvm/include/llvm/Target/DarwinTargetAsmInfo.h
index 48f9133923e6..082acbfe3782 100644
--- a/llvm/include/llvm/Target/DarwinTargetAsmInfo.h
+++ b/llvm/include/llvm/Target/DarwinTargetAsmInfo.h
@@ -42,6 +42,12 @@ namespace llvm {
     virtual const Section *
     getSectionForMergableConstant(uint64_t Size, unsigned ReloInfo) const;
     
+    virtual const char *
+    getSectionPrefixForUniqueGlobal(SectionKind::Kind Kind) const {
+      // Darwin doesn't use uniqued sections for weak symbols.
+      return 0;
+    }
+
   private:
     const Section* MergeableStringSection(const GlobalVariable *GV) const;
   };