diff --git a/src/wxWindows.dsp b/src/wxWindows.dsp
index bcf80104a0..e96d2621a1 100644
--- a/src/wxWindows.dsp
+++ b/src/wxWindows.dsp
@@ -542,10 +542,6 @@ SOURCE=.\common\gifdecod.cpp
 # End Source File
 # Begin Source File
 
-SOURCE=.\common\gzstream.cpp
-# End Source File
-# Begin Source File
-
 SOURCE=.\common\hash.cpp
 # End Source File
 # Begin Source File
@@ -2110,10 +2106,6 @@ SOURCE=..\include\wx\gsocket.h
 # End Source File
 # Begin Source File
 
-SOURCE=..\include\wx\gzstream.h
-# End Source File
-# Begin Source File
-
 SOURCE=..\include\wx\hash.h
 # End Source File
 # Begin Source File