diff --git a/windows/NTMakefile.w32 b/windows/NTMakefile.w32
index b5cff7f6c..8079c7886 100644
--- a/windows/NTMakefile.w32
+++ b/windows/NTMakefile.w32
@@ -55,6 +55,8 @@ SRC=$(MAKEDIR)\..
 SRC=$(MAKEDIR)\..\..
 !elseif exist($(MAKEDIR)\..\..\..\windows\NTMakefile.w32)
 SRC=$(MAKEDIR)\..\..\..
+!elseif exist($(MAKEDIR)\..\..\..\..\windows\NTMakefile.w32)
+SRC=$(MAKEDIR)\..\..\..\..
 !else
 !  error Cant determine source directory
 !endif