diff --git a/demboyz/base/jsonfile.cpp b/demboyz/base/jsonfile.cpp
index afb6711..6c69417 100644
--- a/demboyz/base/jsonfile.cpp
+++ b/demboyz/base/jsonfile.cpp
@@ -156,13 +156,20 @@ namespace base
         writer.String(value);
     }
 
-    void JsonWriterFile::WriteString(const char* name, const char* value, std::int32_t length)
+    void JsonWriterFile::WriteString(const char* name, const char* value, std::size_t length)
     {
         auto& writer = m_writer;
         writer.String(name);
         writer.String(value, length);
     }
 
+    void JsonWriterFile::WriteString(const char* name, const std::string& value)
+    {
+        auto& writer = m_writer;
+        writer.String(name);
+        writer.String(value.c_str(), value.length());
+    }
+
     void JsonWriterFile::WriteFloat(const char* name, const double value)
     {
         auto& writer = m_writer;
diff --git a/demboyz/base/jsonfile.h b/demboyz/base/jsonfile.h
index 684dab0..76485ab 100644
--- a/demboyz/base/jsonfile.h
+++ b/demboyz/base/jsonfile.h
@@ -6,6 +6,7 @@
 #include <cstdint>
 #include <cstdio>
 #include <cstddef>
+#include <string>
 
 namespace base
 {
@@ -36,7 +37,8 @@ namespace base
         void WriteUInt32(const char* name, std::uint32_t value, bool writeCondition);
         void WriteUint64(const char* name, std::uint64_t value);
         void WriteString(const char* name, const char* value);
-        void WriteString(const char* name, const char* value, std::int32_t length);
+        void WriteString(const char* name, const char* value, std::size_t length);
+        void WriteString(const char* name, const std::string& value);
         void WriteFloat(const char* name, const double value);
 
         void WriteBits(const char* name, const unsigned char* data, std::size_t numBits);
diff --git a/demboyz/demmessages/dem_consolecmd.cpp b/demboyz/demmessages/dem_consolecmd.cpp
index 4d21cfe..fb8ac0f 100644
--- a/demboyz/demmessages/dem_consolecmd.cpp
+++ b/demboyz/demmessages/dem_consolecmd.cpp
@@ -27,7 +27,7 @@ namespace DemHandlers
 
     bool Dem_ConsoleCmd_JsonWrite_Internal(JsonWrite& jsonbuf, DemMsg::Dem_ConsoleCmd* data)
     {
-        jsonbuf.WriteString("command", data->command.c_str(), data->command.length());
+        jsonbuf.WriteString("command", data->command);
         return true;
     }
 }