diff --git a/lib/Interpreter/Compatibility.h b/lib/Interpreter/Compatibility.h
index 3d0155225..539bda951 100644
--- a/lib/Interpreter/Compatibility.h
+++ b/lib/Interpreter/Compatibility.h
@@ -210,9 +210,7 @@ getSymbolAddress(clang::Interpreter& I, llvm::StringRef IRName) {
 
 inline llvm::Expected<llvm::JITTargetAddress>
 getSymbolAddress(clang::Interpreter& I, clang::GlobalDecl GD) {
-  const auto& DL = getExecutionEngine(I)->getDataLayout();
-  char GlobalPrefix = DL.getGlobalPrefix();
-  std::string MangledName = std::string(1, GlobalPrefix);
+  std::string MangledName;
   compat::maybeMangleDeclName(GD, MangledName);
   return getSymbolAddress(I, llvm::StringRef(MangledName));
 }