diff --git a/include/llvm/Pass.h b/include/llvm/Pass.h
index 84ec8442fb8..1ab6ff9a720 100644
--- a/include/llvm/Pass.h
+++ b/include/llvm/Pass.h
@@ -88,7 +88,7 @@ class Pass {
   Pass(const Pass &);           // DO NOT IMPLEMENT
 public:
   Pass() : Resolver(0), PassInfoCache(0) {}
-  virtual ~Pass() { delete Resolver; } // Destructor is virtual so we can be subclassed
+  virtual ~Pass();
 
   /// getPassName - Return a nice clean name for a pass.  This usually
   /// implemented in terms of the name that is registered by one of the
diff --git a/lib/VMCore/Pass.cpp b/lib/VMCore/Pass.cpp
index be49ae41a18..e6b31b302a9 100644
--- a/lib/VMCore/Pass.cpp
+++ b/lib/VMCore/Pass.cpp
@@ -27,6 +27,11 @@ using namespace llvm;
 // Pass Implementation
 //
 
+// Force out-of-line virtual method.
+Pass::~Pass() { 
+  delete Resolver; 
+}
+
 // Force out-of-line virtual method.
 ModulePass::~ModulePass() { }