diff --git a/app/app.pri b/app/app.pri
index 768f484af6d2e4fc61a3a97b4aa3bf55ea26fa3c..3dc35f887cf0401f44e57cf58edb9467911bb100 100644
--- a/app/app.pri
+++ b/app/app.pri
@@ -27,4 +27,16 @@ INCLUDEPATH += $${PWD}/src
 
 unix:!ios:!android {
     QT += dbus
+
+    HEADERS += \
+        $${PWD}/src/handlers/desktopthemehandler.h \
+        $${PWD}/src/desktopthemes/kdetheme.h \
+        $${PWD}/src/desktopthemes/gnometheme.h \
+        $${PWD}/src/desktopthemes/xfcetheme.h
+
+    SOURCES += \
+        $${PWD}/src/handlers/desktopthemehandler.cpp \
+        $${PWD}/src/desktopthemes/kdetheme.cpp \
+        $${PWD}/src/desktopthemes/gnometheme.cpp \
+        $${PWD}/src/desktopthemes/xfcetheme.cpp
 }