diff --git a/changelog.txt b/changelog.txt
index d51890c7..9122e1cb 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -1,3 +1,4 @@
+26-aug-2010  - mart0258 - W32 - fix crash when re-opening debugging window
 20-aug-2010  - adelikat - Win32 - Display movie name at the top of the main window
 09-july-2010 - mart0258 - TasEdit - cleanup; prevent crash when truncating while turbo
 13-june-2010 - adelikat - Win32 - avi capture commandline argument and related parameters
diff --git a/src/drivers/win/debugger.cpp b/src/drivers/win/debugger.cpp
index d243cd0b..c61379b4 100644
--- a/src/drivers/win/debugger.cpp
+++ b/src/drivers/win/debugger.cpp
@@ -918,6 +918,7 @@ void DebuggerExit()
 	debugger_open = 0;
 	inDebugger = false;
 	DestroyWindow(hDebug);
+	hDebug=0;
 }
 
 static RECT currDebuggerRect;