diff --git a/Makefile.in b/Makefile.in
index 5ae4ec548c..5855a1943d 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -3103,6 +3103,7 @@ COND_USE_GUI_1_ALL_GUI_HEADERS =  \
 	wx/aui/aui.h \
 	wx/richtext/richtextctrl.h \
 	wx/richtext/richtextbuffer.h \
+	wx/richtext/richtexthtml.h \
 	wx/richtext/richtextstyles.h \
 	wx/richtext/richtextxml.h \
 	wx/richtext/richtextformatdlg.h \
diff --git a/build/msw/wx_core.dsp b/build/msw/wx_core.dsp
index 6412d10742..1971af9707 100644
--- a/build/msw/wx_core.dsp
+++ b/build/msw/wx_core.dsp
@@ -9205,6 +9205,10 @@ SOURCE=..\..\include\wx\richtext\richtextformatdlg.h
 # End Source File
 # Begin Source File
 
+SOURCE=..\..\include\wx\richtext\richtexthtml.h
+# End Source File
+# Begin Source File
+
 SOURCE=..\..\include\wx\richtext\richtextprint.h
 # End Source File
 # Begin Source File
diff --git a/build/msw/wx_richtext.dsp b/build/msw/wx_richtext.dsp
index 3e7d228c46..0a23cc51db 100644
--- a/build/msw/wx_richtext.dsp
+++ b/build/msw/wx_richtext.dsp
@@ -970,6 +970,10 @@ SOURCE=..\..\include\wx\richtext\richtextformatdlg.h
 # End Source File
 # Begin Source File
 
+SOURCE=..\..\include\wx\richtext\richtexthtml.h
+# End Source File
+# Begin Source File
+
 SOURCE=..\..\include\wx\richtext\richtextprint.h
 # End Source File
 # Begin Source File