diff --git a/src/rpc/rawtransaction.cpp b/src/rpc/rawtransaction.cpp
index d4ae8c6b21..c86a59a63c 100644
--- a/src/rpc/rawtransaction.cpp
+++ b/src/rpc/rawtransaction.cpp
@@ -421,7 +421,7 @@ static RPCHelpMan createrawtransaction()
                             "For compatibility reasons, a dictionary, which holds the key-value pairs directly, is also\n"
                             "                             accepted as second parameter.",
                         {
-                            {"", RPCArg::Type::OBJ, RPCArg::Optional::OMITTED, "",
+                            {"", RPCArg::Type::OBJ_USER_KEYS, RPCArg::Optional::OMITTED, "",
                                 {
                                     {"address", RPCArg::Type::AMOUNT, RPCArg::Optional::NO, "A key-value pair. The key (string) is the bitcoin address, the value (float or string) is the amount in " + CURRENCY_UNIT},
                                 },
diff --git a/src/rpc/util.h b/src/rpc/util.h
index d0acdc675f..46e69c1596 100644
--- a/src/rpc/util.h
+++ b/src/rpc/util.h
@@ -178,7 +178,7 @@ struct RPCArg {
           m_oneline_description{std::move(oneline_description)},
           m_type_str{std::move(type_str)}
     {
-        CHECK_NONFATAL(type != Type::ARR && type != Type::OBJ);
+        CHECK_NONFATAL(type != Type::ARR && type != Type::OBJ && type != Type::OBJ_USER_KEYS);
     }
 
     RPCArg(
@@ -198,7 +198,7 @@ struct RPCArg {
           m_oneline_description{std::move(oneline_description)},
           m_type_str{std::move(type_str)}
     {
-        CHECK_NONFATAL(type == Type::ARR || type == Type::OBJ);
+        CHECK_NONFATAL(type == Type::ARR || type == Type::OBJ || type == Type::OBJ_USER_KEYS);
     }
 
     bool IsOptional() const;
diff --git a/src/wallet/rpcwallet.cpp b/src/wallet/rpcwallet.cpp
index 2b4c6ed7b6..28e5decf02 100644
--- a/src/wallet/rpcwallet.cpp
+++ b/src/wallet/rpcwallet.cpp
@@ -606,7 +606,7 @@ static RPCHelpMan listaddressgroupings()
                     {
                         {RPCResult::Type::ARR, "", "",
                         {
-                            {RPCResult::Type::ARR, "", "",
+                            {RPCResult::Type::ARR_FIXED, "", "",
                             {
                                 {RPCResult::Type::STR, "address", "The address"},
                                 {RPCResult::Type::STR_AMOUNT, "amount", "The amount in " + CURRENCY_UNIT},