diff --git a/src/Ryujinx.Graphics.RenderDocApi/RenderDoc.cs b/src/Ryujinx.Graphics.RenderDocApi/RenderDoc.cs
index 600e43f43..0782b4a90 100644
--- a/src/Ryujinx.Graphics.RenderDocApi/RenderDoc.cs
+++ b/src/Ryujinx.Graphics.RenderDocApi/RenderDoc.cs
@@ -75,7 +75,7 @@ namespace Ryujinx.Graphics.RenderDocApi
             }
             set
             {
-                fixed (byte* ptr = Encoding.UTF8.GetBytes(value + '\0'))
+                fixed (byte* ptr = value.ToNullTerminatedByteArray())
                 {
                     Api->SetCaptureFilePathTemplate(ptr);
                 }
@@ -254,7 +254,7 @@ namespace Ryujinx.Graphics.RenderDocApi
             fixed (byte* ptr = bytes)
                 Api->GetCapture(index, ptr, &length, &timestamp);
 
-            string fileName = Encoding.UTF8.GetString(bytes.Slice(length));
+            string fileName = Encoding.UTF8.GetString(bytes[length..]);
             return new Capture(index, fileName, DateTimeOffset.FromUnixTimeSeconds(timestamp).DateTime);
         }
 
@@ -272,7 +272,7 @@ namespace Ryujinx.Graphics.RenderDocApi
                 return Api->LaunchReplayUI(connectTargetControl ? 1 : 0, null) != 0;
             }
 
-            fixed (byte* ptr = Encoding.UTF8.GetBytes(commandLine + '\0'))
+            fixed (byte* ptr = commandLine.ToNullTerminatedByteArray())
             {
                 return Api->LaunchReplayUI(connectTargetControl ? 1 : 0, ptr) != 0;
             }
@@ -339,7 +339,7 @@ namespace Ryujinx.Graphics.RenderDocApi
         {
             AssertAtLeast(1, 2);
 
-            byte[] commentBytes = Encoding.UTF8.GetBytes(comments + '\0');
+            byte[] commentBytes = comments.ToNullTerminatedByteArray();
 
             fixed (byte* pcomment = commentBytes)
             {
@@ -349,7 +349,7 @@ namespace Ryujinx.Graphics.RenderDocApi
                 }
                 else
                 {
-                    byte[] fileBytes = Encoding.UTF8.GetBytes(fileName + '\0');
+                    byte[] fileBytes = fileName.ToNullTerminatedByteArray();
 
                     fixed (byte* pfile = fileBytes)
                     {
@@ -407,7 +407,7 @@ namespace Ryujinx.Graphics.RenderDocApi
         public static void SetCaptureTitle(string title)
         {
             AssertAtLeast(1, 6);
-            fixed (byte* ptr = Encoding.UTF8.GetBytes(title + '\0'))
+            fixed (byte* ptr = title.ToNullTerminatedByteArray())
                 Api->SetCaptureTitle(ptr);
         }
 
@@ -511,6 +511,13 @@ namespace Ryujinx.Graphics.RenderDocApi
         private static RenderDocVersion SystemVersionToRenderdocVersion(Version version) =>
             (RenderDocVersion)(version.Major * 10000 + version.Minor * 100 + version.Build);
 
+        private static byte[] ToNullTerminatedByteArray(this string str, Encoding? encoding = null)
+        {
+            encoding ??= Encoding.UTF8;
+
+            return encoding.GetBytes(str + '\0');
+        }
+
         #endregion
     }
 }