diff --git a/src/rpc/rawtransaction.cpp b/src/rpc/rawtransaction.cpp
--- a/src/rpc/rawtransaction.cpp
+++ b/src/rpc/rawtransaction.cpp
@@ -932,13 +932,10 @@
                            "Second argument must be numeric (maxfeerate) and "
                            "no longer supports a boolean. To allow a "
                            "transaction with high fees, set maxfeerate to 0.");
-    } else if (request.params[1].isNum()) {
+    } else if (!request.params[1].isNull()) {
         size_t sz = tx->GetTotalSize();
         CFeeRate fr(AmountFromValue(request.params[1]));
         max_raw_tx_fee = fr.GetFee(sz);
-    } else if (!request.params[1].isNull()) {
-        throw JSONRPCError(RPC_INVALID_PARAMETER,
-                           "second argument (maxfeerate) must be numeric");
     }
     std::string err_string;
     AssertLockNotHeld(cs_main);
@@ -1032,13 +1029,10 @@
                            "Second argument must be numeric (maxfeerate) and "
                            "no longer supports a boolean. To allow a "
                            "transaction with high fees, set maxfeerate to 0.");
-    } else if (request.params[1].isNum()) {
+    } else if (!request.params[1].isNull()) {
         size_t sz = tx->GetTotalSize();
         CFeeRate fr(AmountFromValue(request.params[1]));
         max_raw_tx_fee = fr.GetFee(sz);
-    } else if (!request.params[1].isNull()) {
-        throw JSONRPCError(RPC_INVALID_PARAMETER,
-                           "second argument (maxfeerate) must be numeric");
     }
 
     UniValue result(UniValue::VARR);
diff --git a/test/functional/rpc_rawtransaction.py b/test/functional/rpc_rawtransaction.py
--- a/test/functional/rpc_rawtransaction.py
+++ b/test/functional/rpc_rawtransaction.py
@@ -566,11 +566,11 @@
                                 0.00001000)
         # And below calls should both succeed
         testres = self.nodes[2].testmempoolaccept(
-            rawtxs=[rawTxSigned['hex']], maxfeerate=0.00007000)[0]
+            rawtxs=[rawTxSigned['hex']], maxfeerate='0.00007000')[0]
         assert_equal(testres['allowed'], True)
         self.nodes[2].sendrawtransaction(
             hexstring=rawTxSigned['hex'],
-            maxfeerate=0.00007000)
+            maxfeerate='0.00007000')
 
         ##########################################
         # Decoding weird scripts in transactions #