diff --git a/tools/topology/topology2/cavs/CMakeLists.txt b/tools/topology/topology2/cavs/CMakeLists.txt
index 94d25d47b..82cde1f3f 100644
--- a/tools/topology/topology2/cavs/CMakeLists.txt
+++ b/tools/topology/topology2/cavs/CMakeLists.txt
@@ -10,7 +10,7 @@ set(TPLGS
 "cavs-gain-hdmi\;cavs-gain-hdmi"
 # CAVS HDA topology with gain-based pipelines
 "cavs-gain-hdmi\;cavs-gain-hda\;HDA_CONFIG=gain"
-# CAVS HDA topology with mixer-based pipelines
+# CAVS HDA topology with mixer-based pipelines for HDA and passthrough pipelines for HDMI
 "cavs-passthrough-hdmi\;cavs-mixin-mixout-hda\;HDA_CONFIG=mix"
 # CAVS SDW topology with passthrough pipelines
 "cavs-sdw\;cavs-sdw"