diff --git a/projectfiles/blender/makesdna/DNA_makesdna.dsp b/projectfiles/blender/makesdna/DNA_makesdna.dsp
index dc7c44ec804..a1980100d26 100644
--- a/projectfiles/blender/makesdna/DNA_makesdna.dsp
+++ b/projectfiles/blender/makesdna/DNA_makesdna.dsp
@@ -266,6 +266,10 @@ SOURCE=..\..\..\source\blender\makesdna\DNA_nla_types.h
 # End Source File
 # Begin Source File
 
+SOURCE=..\..\..\source\blender\makesdna\DNA_object_force.h
+# End Source File
+# Begin Source File
+
 SOURCE=..\..\..\source\blender\makesdna\DNA_object_types.h
 # End Source File
 # Begin Source File