diff --git a/app/gui/CMakeLists.txt b/app/gui/CMakeLists.txt
index 19205a01..2439c841 100644
--- a/app/gui/CMakeLists.txt
+++ b/app/gui/CMakeLists.txt
@@ -3,11 +3,11 @@ project(irritator-gui VERSION 0.1.0.0 LANGUAGES CXX)
 
 set(gui_sources application.cpp application.hpp
     component-editor.cpp component-model-selector.cpp component-selector.cpp
-    data-window.cpp dialog.cpp dialog.hpp editor.cpp editor.hpp imnodes.cpp
+    dialog.cpp dialog.hpp editor.cpp editor.hpp imnodes.cpp
     imnodes.h imnodes_internal.h implot.cpp implot.h implot_demo.cpp
     implot_internal.h implot_items.cpp internal.cpp internal.hpp io.cpp
     library-window.cpp memory-window.cpp notification.cpp output-editor.cpp
-    plot-copy-widget.cpp plot-observation-widget.cpp project-window.cpp
+    plot-copy-widget.cpp plot-observation-widget.cpp project-external-source-editor.cpp project-window.cpp
     settings-window.cpp simulation-component.cpp simulation-editor.cpp
     task-window.cpp window-logger.cpp
 
diff --git a/app/gui/data-window.cpp b/app/gui/project-external-source-editor.cpp
similarity index 100%
rename from app/gui/data-window.cpp
rename to app/gui/project-external-source-editor.cpp