diff --git a/geometry/geometry.pro b/geometry/geometry.pro
index 335404b3df..3a8897250a 100644
--- a/geometry/geometry.pro
+++ b/geometry/geometry.pro
@@ -15,6 +15,7 @@ SOURCES += \
   robust_orientation.cpp \
   region2d/binary_operators.cpp \
   angles.cpp \
+  spline.cpp \
 
 HEADERS += \
   rect2d.hpp \
@@ -40,3 +41,4 @@ HEADERS += \
   region2d/boost_concept.hpp \
   avg_vector.hpp \
   polyline2d.hpp \
+  spline.hpp \
diff --git a/geometry/geometry_tests/geometry_tests.pro b/geometry/geometry_tests/geometry_tests.pro
index 7a6f92c611..a27e531258 100644
--- a/geometry/geometry_tests/geometry_tests.pro
+++ b/geometry/geometry_tests/geometry_tests.pro
@@ -41,3 +41,4 @@ SOURCES += \
   anyrect_test.cpp \
   region2d_binary_op_test.cpp \
   vector_test.cpp \
+  spline_test.cpp \