diff --git a/include/llvm/Value.h b/include/llvm/Value.h
index 1d2c61ea199..f9edba116b5 100644
--- a/include/llvm/Value.h
+++ b/include/llvm/Value.h
@@ -165,7 +165,7 @@ public:
   ///
   bool hasNUsesOrMore(unsigned N) const;
 
-  bool isUsedInBasicBlock(BasicBlock *BB) const;
+  bool isUsedInBasicBlock(const BasicBlock *BB) const;
 
   /// getNumUses - This method computes the number of uses of this Value.  This
   /// is a linear time operation.  Use hasOneUse, hasNUses, or hasMoreThanNUses
diff --git a/lib/VMCore/Value.cpp b/lib/VMCore/Value.cpp
index bc5b7a9f81c..d143b6bf97e 100644
--- a/lib/VMCore/Value.cpp
+++ b/lib/VMCore/Value.cpp
@@ -95,7 +95,7 @@ bool Value::hasNUsesOrMore(unsigned N) const {
 
 /// isUsedInBasicBlock - Return true if this value is used in the specified
 /// basic block.
-bool Value::isUsedInBasicBlock(BasicBlock *BB) const {
+bool Value::isUsedInBasicBlock(const BasicBlock *BB) const {
   for (use_const_iterator I = use_begin(), E = use_end(); I != E; ++I) {
     const Instruction *User = dyn_cast<Instruction>(*I);
     if (User && User->getParent() == BB)