diff --git a/src/validation.h b/src/validation.h
--- a/src/validation.h
+++ b/src/validation.h
@@ -764,6 +764,9 @@
 /** The currently-connected chain of blocks (protected by cs_main). */
 extern CChain &chainActive;
 
+/** @returns the most-work chain. */
+CChain &ChainActive();
+
 /**
  * Global variable that points to the coins database (protected by cs_main)
  */
diff --git a/src/validation.cpp b/src/validation.cpp
--- a/src/validation.cpp
+++ b/src/validation.cpp
@@ -233,6 +233,10 @@
         EXCLUSIVE_LOCKS_REQUIRED(cs_main);
 } g_chainstate;
 
+CChain &ChainActive() {
+    return g_chainstate.m_chain;
+}
+
 /**
  * Global state
  *