diff --git a/src/bitcoin-tx.cpp b/src/bitcoin-tx.cpp
index c82d4f93a8d..45990f6bd8a 100644
--- a/src/bitcoin-tx.cpp
+++ b/src/bitcoin-tx.cpp
@@ -346,7 +346,7 @@ static void MutateTxSign(CMutableTransaction& tx, const string& flagStr)
     UniValue keysObj = registers["privatekeys"];
     fGivenKeys = true;
 
-    for (unsigned int kidx = 0; kidx < keysObj.count(); kidx++) {
+    for (unsigned int kidx = 0; kidx < keysObj.size(); kidx++) {
         if (!keysObj[kidx].isStr())
             throw runtime_error("privatekey not a string");
         CBitcoinSecret vchSecret;
@@ -363,7 +363,7 @@ static void MutateTxSign(CMutableTransaction& tx, const string& flagStr)
         throw runtime_error("prevtxs register variable must be set.");
     UniValue prevtxsObj = registers["prevtxs"];
     {
-        for (unsigned int previdx = 0; previdx < prevtxsObj.count(); previdx++) {
+        for (unsigned int previdx = 0; previdx < prevtxsObj.size(); previdx++) {
             UniValue prevOut = prevtxsObj[previdx];
             if (!prevOut.isObject())
                 throw runtime_error("expected prevtxs internal object");
diff --git a/src/test/univalue_tests.cpp b/src/test/univalue_tests.cpp
index 8cecfbf6516..6df980ad0c6 100644
--- a/src/test/univalue_tests.cpp
+++ b/src/test/univalue_tests.cpp
@@ -72,13 +72,13 @@ BOOST_AUTO_TEST_CASE(univalue_set)
 
     BOOST_CHECK(v.setObject());
     BOOST_CHECK(v.isObject());
-    BOOST_CHECK_EQUAL(v.count(), 0);
+    BOOST_CHECK_EQUAL(v.size(), 0);
     BOOST_CHECK_EQUAL(v.getType(), UniValue::VOBJ);
     BOOST_CHECK(v.empty());
 
     BOOST_CHECK(v.setArray());
     BOOST_CHECK(v.isArray());
-    BOOST_CHECK_EQUAL(v.count(), 0);
+    BOOST_CHECK_EQUAL(v.size(), 0);
 
     BOOST_CHECK(v.setStr("zum"));
     BOOST_CHECK(v.isStr());
@@ -145,7 +145,7 @@ BOOST_AUTO_TEST_CASE(univalue_array)
     BOOST_CHECK(arr.push_backV(vec));
 
     BOOST_CHECK_EQUAL(arr.empty(), false);
-    BOOST_CHECK_EQUAL(arr.count(), 5);
+    BOOST_CHECK_EQUAL(arr.size(), 5);
 
     BOOST_CHECK_EQUAL(arr[0].getValStr(), "1023");
     BOOST_CHECK_EQUAL(arr[1].getValStr(), "zippy");
@@ -157,7 +157,7 @@ BOOST_AUTO_TEST_CASE(univalue_array)
 
     arr.clear();
     BOOST_CHECK(arr.empty());
-    BOOST_CHECK_EQUAL(arr.count(), 0);
+    BOOST_CHECK_EQUAL(arr.size(), 0);
 }
 
 BOOST_AUTO_TEST_CASE(univalue_object)
@@ -197,7 +197,7 @@ BOOST_AUTO_TEST_CASE(univalue_object)
     BOOST_CHECK(obj.pushKVs(obj2));
 
     BOOST_CHECK_EQUAL(obj.empty(), false);
-    BOOST_CHECK_EQUAL(obj.count(), 9);
+    BOOST_CHECK_EQUAL(obj.size(), 9);
 
     BOOST_CHECK_EQUAL(obj["age"].getValStr(), "100");
     BOOST_CHECK_EQUAL(obj["first"].getValStr(), "John");
@@ -240,7 +240,7 @@ BOOST_AUTO_TEST_CASE(univalue_object)
 
     obj.clear();
     BOOST_CHECK(obj.empty());
-    BOOST_CHECK_EQUAL(obj.count(), 0);
+    BOOST_CHECK_EQUAL(obj.size(), 0);
 }
 
 static const char *json1 =
@@ -255,13 +255,13 @@ BOOST_AUTO_TEST_CASE(univalue_readwrite)
     BOOST_CHECK(v.read(strJson1));
 
     BOOST_CHECK(v.isArray());
-    BOOST_CHECK_EQUAL(v.count(), 2);
+    BOOST_CHECK_EQUAL(v.size(), 2);
 
     BOOST_CHECK_EQUAL(v[0].getValStr(), "1.1");
 
     UniValue obj = v[1];
     BOOST_CHECK(obj.isObject());
-    BOOST_CHECK_EQUAL(obj.count(), 3);
+    BOOST_CHECK_EQUAL(obj.size(), 3);
 
     BOOST_CHECK(obj["key1"].isStr());
     BOOST_CHECK_EQUAL(obj["key1"].getValStr(), "str");
diff --git a/src/univalue/univalue.h b/src/univalue/univalue.h
index 88d73b8c64f..d31c596a616 100644
--- a/src/univalue/univalue.h
+++ b/src/univalue/univalue.h
@@ -58,7 +58,7 @@ public:
     std::string getValStr() const { return val; }
     bool empty() const { return (values.size() == 0); }
 
-    size_t count() const { return values.size(); }
+    size_t size() const { return values.size(); }
 
     bool getBool() const { return isTrue(); }
     bool checkObject(const std::map<std::string,UniValue::VType>& memberTypes);