diff --git a/lib/System/DynamicLibrary.cpp b/lib/System/DynamicLibrary.cpp
index 669422c..6efab94 100644
--- a/lib/System/DynamicLibrary.cpp
+++ b/lib/System/DynamicLibrary.cpp
@@ -25,6 +25,13 @@
 // Collection of symbol name/value pairs to be searched prior to any libraries.
 static std::map<std::string, void*> *ExplicitSymbols = 0;
 
+static struct ExplicitSymbolsDeleter {
+  ~ExplicitSymbolsDeleter() {
+    if (ExplicitSymbols)
+      delete ExplicitSymbols;
+  }
+} Dummy;
+
 void llvm::sys::DynamicLibrary::AddSymbol(const char* symbolName,
                                           void *symbolValue) {
   if (ExplicitSymbols == 0)