3 files changed, 3 insertions, 3 deletions
diff --git a/src/rpc/rawtransaction.cpp b/src/rpc/rawtransaction.cpp
index cf856af6e9..9b6ef15785 100644
--- a/src/rpc/rawtransaction.cpp
+++ b/src/rpc/rawtransaction.cpp
@@ -1348,7 +1348,7 @@ UniValue finalizepsbt(const JSONRPCRequest& request)
 
     if (complete && extract) {
         ssTx << mtx;
-        result_str = HexStr(ssTx.str());
+        result_str = HexStr(ssTx);
         result.pushKV("hex", result_str);
     } else {
         ssTx << psbtx;
diff --git a/src/rpc/request.cpp b/src/rpc/request.cpp
index 7fef45f50e..d9ad70fa37 100644
--- a/src/rpc/request.cpp
+++ b/src/rpc/request.cpp
@@ -78,7 +78,7 @@ bool GenerateAuthCookie(std::string *cookie_out)
     const size_t COOKIE_SIZE = 32;
     unsigned char rand_pwd[COOKIE_SIZE];
     GetRandBytes(rand_pwd, COOKIE_SIZE);
-    std::string cookie = COOKIEAUTH_USER + ":" + HexStr(rand_pwd, rand_pwd+COOKIE_SIZE);
+    std::string cookie = COOKIEAUTH_USER + ":" + HexStr(rand_pwd);
 
     /** the umask determines what permissions are used to create this file -
      * these are set to 077 in init.cpp unless overridden with -sysperms.
diff --git a/src/rpc/util.cpp b/src/rpc/util.cpp
index 9f4c7bee9c..073a7688a9 100644
--- a/src/rpc/util.cpp
+++ b/src/rpc/util.cpp
@@ -260,7 +260,7 @@ public:
         UniValue obj(UniValue::VOBJ);
         obj.pushKV("iswitness", true);
         obj.pushKV("witness_version", (int)id.version);
-        obj.pushKV("witness_program", HexStr(id.program, id.program + id.length));
+        obj.pushKV("witness_program", HexStr(Span<const unsigned char>(id.program, id.length)));
         return obj;
     }
 };