diff --git a/cmake/DPF-plugin.cmake b/cmake/DPF-plugin.cmake
index 133ede97..3c3d685c 100644
--- a/cmake/DPF-plugin.cmake
+++ b/cmake/DPF-plugin.cmake
@@ -387,6 +387,7 @@ function(dpf__add_dgl_opengl)
     "${DPF_ROOT_DIR}/dgl/src/Application.cpp"
     "${DPF_ROOT_DIR}/dgl/src/ApplicationPrivateData.cpp"
     "${DPF_ROOT_DIR}/dgl/src/Color.cpp"
+    "${DPF_ROOT_DIR}/dgl/src/EventHandlers.cpp"
     "${DPF_ROOT_DIR}/dgl/src/Geometry.cpp"
     "${DPF_ROOT_DIR}/dgl/src/ImageBase.cpp"
     "${DPF_ROOT_DIR}/dgl/src/ImageBaseWidgets.cpp"