diff --git a/AppleWin/source/Debugger_Display.h b/AppleWin/source/Debugger_Display.h
index 8fd1ab1a..0f0231e7 100644
--- a/AppleWin/source/Debugger_Display.h
+++ b/AppleWin/source/Debugger_Display.h
@@ -89,4 +89,6 @@
 	void DrawWatches          ( int line);
 	void DrawZeroPagePointers ( int line);
 
+	void Debug_UpdatePalette( BYTE *pPalDst );
+
 #endif