diff --git a/.github/scripts/flags-clang.sh b/.github/scripts/flags-clang.sh
index 125559715..9318c5f23 100644
--- a/.github/scripts/flags-clang.sh
+++ b/.github/scripts/flags-clang.sh
@@ -48,6 +48,8 @@ add_flag -Wno-unused-parameter
 add_flag -Wno-used-but-marked-unused
 # We use variable length arrays a lot.
 add_flag -Wno-vla
+# Disable warning about Doxygen retval tag
+add_flag -fcomment-block-commands=retval
 
 # Disable specific warning flags for C++.