diff --git a/cmake_templates/Doxyfile.in b/cmake_templates/Doxyfile.in
index 1d44045b489c..e25dc5c95a2b 100644
--- a/cmake_templates/Doxyfile.in
+++ b/cmake_templates/Doxyfile.in
@@ -575,6 +575,7 @@ INPUT                  = @CMAKE_SOURCE_DIR@/doc \
                          @CMAKE_SOURCE_DIR@/src/core/composer \
                          @CMAKE_SOURCE_DIR@/src/core/diagram \
                          @CMAKE_SOURCE_DIR@/src/core/dxf \
+                         @CMAKE_SOURCE_DIR@/src/core/effects \
                          @CMAKE_SOURCE_DIR@/src/core/gps \
                          @CMAKE_SOURCE_DIR@/src/core/layertree \
                          @CMAKE_SOURCE_DIR@/src/core/pal \