diff --git a/src/xpdev/xpdev.dsp b/src/xpdev/xpdev.dsp
index 54bde292a934c41a1931ec2d8e17e8f067fa73ba..ad1952944442065f8e53897fbcdcf4cfcfdd3711 100644
--- a/src/xpdev/xpdev.dsp
+++ b/src/xpdev/xpdev.dsp
@@ -126,6 +126,10 @@ SOURCE=.\str_list.c
 # End Source File
 # Begin Source File
 
+SOURCE=.\xp_dl.c
+# End Source File
+# Begin Source File
+
 SOURCE=.\xpdatetime.c
 # End Source File
 # Begin Source File