diff --git a/Changelog.md b/Changelog.md
index 4ed75d8..726b773 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -1,10 +1,16 @@
 
-5.4.8.1 Beta (not yet released)
+5.4.8.2 Beta (not yet released)
 ============
 
 
 
 
+5.4.8.1 Beta
+============
+
+- fix stdin support
+
+
 5.4.8.0
 =======
 
diff --git a/mpv.net/Properties/AssemblyInfo.cs b/mpv.net/Properties/AssemblyInfo.cs
index fd7e05b..d37e1bb 100644
--- a/mpv.net/Properties/AssemblyInfo.cs
+++ b/mpv.net/Properties/AssemblyInfo.cs
@@ -32,5 +32,5 @@ using System.Runtime.InteropServices;
 // You can specify all the values or you can default the Build and Revision Numbers 
 // by using the '*' as shown below:
 // [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion("5.4.8.0")]
-[assembly: AssemblyFileVersion("5.4.8.0")]
+[assembly: AssemblyVersion("5.4.8.1")]
+[assembly: AssemblyFileVersion("5.4.8.1")]
diff --git a/mpv.net/mpv/Core.cs b/mpv.net/mpv/Core.cs
index ed554e0..b34e15a 100644
--- a/mpv.net/mpv/Core.cs
+++ b/mpv.net/mpv/Core.cs
@@ -883,7 +883,7 @@ namespace mpvnet
             {
                 string arg = i;
 
-                if (arg.StartsWith("-"))
+                if (arg.StartsWith("-") && arg.Length > 1)
                 {
                     try
                     {