diff --git a/eclass/cmake.eclass b/eclass/cmake.eclass
index 37b181df927ba..5b3d135018e89 100644
--- a/eclass/cmake.eclass
+++ b/eclass/cmake.eclass
@@ -106,7 +106,8 @@ fi
 # @DESCRIPTION:
 # Warn about variables that are declared on the command line
 # but not used. Might give false-positives.
-# "no" to disable (default) or anything else to enable.
+# "no" to disable or anything else to enable.
+# The default is set to "yes" (enabled).
 : "${CMAKE_WARN_UNUSED_CLI:=yes}"
 
 # @ECLASS_VARIABLE: CMAKE_EXTRA_CACHE_FILE