diff --git a/src/WireDecoder.h b/src/WireDecoder.h
index 619a634e5b..67c2a9cbb4 100644
--- a/src/WireDecoder.h
+++ b/src/WireDecoder.h
@@ -30,6 +30,9 @@ class WireDecoder {
 
   void set_proto_rev(unsigned int proto_rev) { m_proto_rev = proto_rev; }
 
+  /* Get the active protocol revision. */
+  unsigned int proto_rev() const { return m_proto_rev; }
+
   /* Clears error indicator. */
   void Reset() { m_error = nullptr; }
 
diff --git a/src/WireEncoder.h b/src/WireEncoder.h
index 7d564fc64a..9106e84288 100644
--- a/src/WireEncoder.h
+++ b/src/WireEncoder.h
@@ -28,6 +28,9 @@ class WireEncoder {
   /* Change the protocol revision (mostly affects value encoding). */
   void set_proto_rev(unsigned int proto_rev) { m_proto_rev = proto_rev; }
 
+  /* Get the active protocol revision. */
+  unsigned int proto_rev() const { return m_proto_rev; }
+
   /* Clears buffer and error indicator. */
   void Reset() {
     m_cur = m_start;