diff --git a/pjnath/build/pjnath_test.dsp b/pjnath/build/pjnath_test.dsp
index cabea6a..0c6b862 100644
--- a/pjnath/build/pjnath_test.dsp
+++ b/pjnath/build/pjnath_test.dsp
@@ -95,6 +95,10 @@
 # End Source File
 # Begin Source File
 
+SOURCE="..\src\pjnath-test\sess_auth.c"
+# End Source File
+# Begin Source File
+
 SOURCE="..\src\pjnath-test\stun.c"
 # End Source File
 # Begin Source File