diff --git a/README.md b/README.md
index 7eb73d0..f69488b 100644
--- a/README.md
+++ b/README.md
@@ -128,6 +128,7 @@ A collection of awesome penetration testing resources, tools, books, confs, maga
 * [WDK/WinDbg](http://msdn.microsoft.com/en-us/windows/hardware/hh852365.aspx) - Windows Driver Kit and WinDbg
 * [OllyDbg](http://www.ollydbg.de/) - An x86 debugger that emphasizes binary code analysis
 * [Radare2](http://rada.re/r/index.html) - Opensource, crossplatform reverse engineering framework.
+* [x64_gdb](http://x64dbg.com/) - An open-source x64/x32 debugger for windows
 
 
 ### Books