diff --git a/CMakeLists.txt b/CMakeLists.txt
index 28982fba..fe5cd540 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -91,18 +91,13 @@ xo_add_genfacetimpl(
 )
 
 # ----------------------------------------------------------------
-# header-only library
+# shared library
 
 add_subdirectory(src/expression2)
 
+# ----------------------------------------------------------------
+# cmake helper (for external xo-expression2 users)
+
 xo_export_cmake_config(${PROJECT_NAME} ${PROJECT_VERSION} ${PROJECT_NAME}Targets)
 
-# ----------------------------------------------------------------
-# input dependencies
-#
-# NOTE: dependency set here must be kept consistent with
-#       xo-expression2/cmake/xo_expression2Config.cmake.in
-
-#xo_headeronly_dependency(${SELF_LIB} xo_flatstring)
-
 # end CMakeLists.txt