diff --git a/src/checkpoints.cpp b/src/checkpoints.cpp
index 87f4ad7f2..ec1e2a47f 100644
--- a/src/checkpoints.cpp
+++ b/src/checkpoints.cpp
@@ -23,6 +23,14 @@ namespace Checkpoints {
      * fast multicore CPU, it won't be much higher than 1.
      */
     static const double SIGCHECK_VERIFICATION_FACTOR = 5.0;
+    bool CheckBlock(const CCheckpointData& data, int nHeight, const uint256& hash)
+    {
+        const MapCheckpoints& checkpoints = data.mapCheckpoints;
+        
+        MapCheckpoints::const_iterator i = checkpoints.find(nHeight);
+        if (i == checkpoints.end()) return true;
+        return hash == i->second;
+    }
 
     //! Guess how far we are in the verification process at the given block index
     double GuessVerificationProgress(const CCheckpointData& data, CBlockIndex *pindex, bool fSigchecks) {