diff --git a/ares/vc/cares/vc6cares.dsp b/ares/vc/cares/vc6cares.dsp
index ca44e316d..e3c707090 100644
--- a/ares/vc/cares/vc6cares.dsp
+++ b/ares/vc/cares/vc6cares.dsp
@@ -170,6 +170,10 @@ SOURCE=..\..\ares_cancel.c
 # End Source File
 # Begin Source File
 
+SOURCE=..\..\ares_data.c
+# End Source File
+# Begin Source File
+
 SOURCE=..\..\ares_destroy.c
 # End Source File
 # Begin Source File
@@ -310,6 +314,10 @@ SOURCE=..\..\ares_build.h
 # End Source File
 # Begin Source File
 
+SOURCE=..\..\ares_data.h
+# End Source File
+# Begin Source File
+
 SOURCE=..\..\ares_dns.h
 # End Source File
 # Begin Source File