diff --git a/cmake_templates/Doxyfile.in b/cmake_templates/Doxyfile.in
index 63b467e9cfa..628de9a533c 100644
--- a/cmake_templates/Doxyfile.in
+++ b/cmake_templates/Doxyfile.in
@@ -851,7 +851,7 @@ EXCLUDE_PATTERNS       = moc_* \
 # Note that the wildcards are matched against the file with absolute path, so to
 # exclude all test directories use the pattern */test/*
 
-EXCLUDE_SYMBOLS        =
+EXCLUDE_SYMBOLS        = "QgsGraduatedSymbolRenderer::Mode"
 
 # The EXAMPLE_PATH tag can be used to specify one or more files or directories
 # that contain example code fragments that are included (see the \include