diff --git a/CMakeLists.txt b/CMakeLists.txt
index c09ca7b..df62403 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -62,12 +62,13 @@ if (USE_SYSTEM_TERMO)
 		message (FATAL_ERROR "System termo library not found")
 	endif (NOT Termo_FOUND)
 else (USE_SYSTEM_TERMO)
+	# We don't want the library to install, even though EXCLUDE_FROM_ALL
+	# sabotages CTest -- those unbuilt tests need to be excluded in CTest runs
 	add_subdirectory (termo EXCLUDE_FROM_ALL)
-	# We don't have many good choices when we don't want to install it and want
-	# to support older versions of CMake; this is a relatively clean approach
-	# (other possibilities: setting a variable in the parent scope, using a
-	# cache variable, writing a special config file with build paths in it and
-	# including it here, or setting a custom property on the targets).
+	# We don't have many good choices; this is a relatively clean approach
+	# (other possibilities: setting a variable in the parent scope, using
+	# a cache variable, writing a special config file with build paths in it
+	# and including it here, or setting a custom property on the targets)
 	get_directory_property (Termo_INCLUDE_DIRS
 		DIRECTORY termo INCLUDE_DIRECTORIES)
 	set (Termo_LIBRARIES termo-static)