diff --git a/src/rpc/avalanche.cpp b/src/rpc/avalanche.cpp
--- a/src/rpc/avalanche.cpp
+++ b/src/rpc/avalanche.cpp
@@ -795,6 +795,8 @@
                 "",
                 {{
                     {RPCResult::Type::NUM, "peerid", "The peer id"},
+                    {RPCResult::Type::STR_HEX, "proofid",
+                     "The avalanche proof id used by this peer"},
                     {RPCResult::Type::STR_HEX, "proof",
                      "The avalanche proof used by this peer"},
                     {RPCResult::Type::NUM, "nodecount",
@@ -827,6 +829,7 @@
                 UniValue obj(UniValue::VOBJ);
 
                 obj.pushKV("peerid", uint64_t(peer.peerid));
+                obj.pushKV("proofid", peer.getProofId().ToString());
                 obj.pushKV("proof", peer.proof->ToHex());
 
                 UniValue nodes(UniValue::VARR);
diff --git a/test/functional/abc_rpc_getavalanchepeerinfo.py b/test/functional/abc_rpc_getavalanchepeerinfo.py
--- a/test/functional/abc_rpc_getavalanchepeerinfo.py
+++ b/test/functional/abc_rpc_getavalanchepeerinfo.py
@@ -67,7 +67,9 @@
 
         assert_equal(len(avapeerinfo), peercount)
         for i, peer in enumerate(avapeerinfo):
+            proofid_hex = f"{avalanche_proof_from_hex(proofs[i]).proofid:0{64}x}"
             assert_equal(peer["peerid"], i)
+            assert_equal(peer["proofid"], proofid_hex)
             assert_equal(peer["proof"], proofs[i])
             assert_equal(peer["nodecount"], nodecount)
             assert_equal(set(peer["nodes"]), set([n.nodeid for n in nodes[i]]))