diff --git a/src/rpc/server.cpp b/src/rpc/server.cpp
index e5b4f6ca7..caad3f94f 100644
--- a/src/rpc/server.cpp
+++ b/src/rpc/server.cpp
@@ -50,12 +50,11 @@ void RPCServer::OnStopped(std::function<void ()> slot)
 }
 
 void RPCTypeCheck(const UniValue& params,
-                  const std::list<UniValue::VType>& typesExpected,
+                  const std::list<UniValueType>& typesExpected,
                   bool fAllowNull)
 {
     unsigned int i = 0;
-    for (UniValue::VType t : typesExpected)
-    {
+    for (const UniValueType& t : typesExpected) {
         if (params.size() <= i)
             break;
 
@@ -67,10 +66,10 @@ void RPCTypeCheck(const UniValue& params,
     }
 }
 
-void RPCTypeCheckArgument(const UniValue& value, UniValue::VType typeExpected)
+void RPCTypeCheckArgument(const UniValue& value, const UniValueType& typeExpected)
 {
-    if (value.type() != typeExpected) {
-        throw JSONRPCError(RPC_TYPE_ERROR, strprintf("Expected type %s, got %s", uvTypeName(typeExpected), uvTypeName(value.type())));
+    if (!typeExpected.typeAny && value.type() != typeExpected.type) {
+        throw JSONRPCError(RPC_TYPE_ERROR, strprintf("Expected type %s, got %s", uvTypeName(typeExpected.type), uvTypeName(value.type())));
     }
 }
 
diff --git a/src/rpc/server.h b/src/rpc/server.h
index 075940cb9..703c105be 100644
--- a/src/rpc/server.h
+++ b/src/rpc/server.h
@@ -30,7 +30,7 @@ namespace RPCServer
 /** Wrapper for UniValue::VType, which includes typeAny:
  * Used to denote don't care type. Only used by RPCTypeCheckObj */
 struct UniValueType {
-    explicit UniValueType(UniValue::VType _type) : typeAny(false), type(_type) {}
+    UniValueType(UniValue::VType _type) : typeAny(false), type(_type) {}
     UniValueType() : typeAny(true) {}
     bool typeAny;
     UniValue::VType type;
@@ -69,12 +69,12 @@ bool RPCIsInWarmup(std::string *outStatus);
  * the right number of arguments are passed, just that any passed are the correct type.
  */
 void RPCTypeCheck(const UniValue& params,
-                  const std::list<UniValue::VType>& typesExpected, bool fAllowNull=false);
+                  const std::list<UniValueType>& typesExpected, bool fAllowNull=false);
 
 /**
  * Type-check one argument; throws JSONRPCError if wrong type given.
  */
-void RPCTypeCheckArgument(const UniValue& value, UniValue::VType typeExpected);
+void RPCTypeCheckArgument(const UniValue& value, const UniValueType& typeExpected);
 
 /*
   Check for expected keys/value types in an Object.