diff --git a/apps/sample/trimesh_hole/trimesh_hole.pro b/apps/sample/trimesh_hole/trimesh_hole.pro
index 566d7654..18b46dbc 100644
--- a/apps/sample/trimesh_hole/trimesh_hole.pro
+++ b/apps/sample/trimesh_hole/trimesh_hole.pro
@@ -5,8 +5,8 @@
 TARGET = trimesh_hole
 LIBPATH += 
 DEPENDPATH += . 
-INCLUDEPATH += . ..\..\..\
+INCLUDEPATH += . ../../..
 CONFIG += console stl
 TEMPLATE = app
-SOURCES += trimesh_hole.cpp ..\..\..\wrap\ply\plylib.cpp
-HEADERS += ..\..\..\wrap\ply\plylib.h
\ No newline at end of file
+SOURCES += trimesh_hole.cpp ../../../wrap/ply/plylib.cpp
+HEADERS += ../../../wrap/ply/plylib.h
\ No newline at end of file