diff --git a/doc/Doxygen/Doxyfile b/doc/Doxygen/Doxyfile
index 5b459b53708394833e91427a1e77cb5d29a7d00c..adf242f2359866c12316f45f21788e658d612fb6 100644
--- a/doc/Doxygen/Doxyfile
+++ b/doc/Doxygen/Doxyfile
@@ -487,12 +487,9 @@ WARN_LOGFILE           =
 # directories like "/usr/src/myproject". Separate the files or directories
 # with spaces.
 
-INPUT              = $(WM_PROJECT_DIR)/applications/solvers/combustion/PDRFoam
-
-#$(WM_PROJECT_DIR)/applications/solvers/combustion \
-#$(WM_PROJECT_DIR)/src/thermophysicalModels/laminarFlameSpeed
-#$(WM_PROJECT_DIR)/applications/utilities \
-#$(WM_PROJECT_DIR)/applications/solvers/combustion/PDRFoam
+INPUT              = $(WM_PROJECT_DIR)/src \
+                     $(WM_PROJECT_DIR)/applications/utilities \
+                     $(WM_PROJECT_DIR)/applications/solvers