diff --git a/sounds/CMakeLists.txt b/sounds/CMakeLists.txt
index 56a4a029..6dd10f87 100644
--- a/sounds/CMakeLists.txt
+++ b/sounds/CMakeLists.txt
@@ -1,2 +1,6 @@
+# CMakeLists for sounds/ directory
+#
+# Installs default sound files
+
 FILE(GLOB sounds "${CMAKE_CURRENT_SOURCE_DIR}/sounds/*.raw")
 INSTALL(FILES ${sounds} DESTINATION share/cockatrice/sounds)
diff --git a/zonebg/CMakeLists.txt b/zonebg/CMakeLists.txt
index b3e23a50..76c7c356 100644
--- a/zonebg/CMakeLists.txt
+++ b/zonebg/CMakeLists.txt
@@ -1,2 +1,6 @@
+# CMakeLists for zonebg/ directory
+#
+# Installs default "zone background" files
+
 FILE(GLOB zonebg "${CMAKE_CURRENT_SOURCE_DIR}/zonebg/*.*")
 INSTALL(FILES ${zonebg} DESTINATION share/cockatrice/zonebg)