diff --git a/abclib.dsp b/abclib.dsp
index 3255424db..5a45dafa4 100644
--- a/abclib.dsp
+++ b/abclib.dsp
@@ -4903,6 +4903,10 @@ SOURCE=.\src\aig\gia\giaBidec.c
 # End Source File
 # Begin Source File
 
+SOURCE=.\src\aig\gia\giaBound.c
+# End Source File
+# Begin Source File
+
 SOURCE=.\src\aig\gia\giaCCof.c
 # End Source File
 # Begin Source File