diff --git a/Modules/GenerateExportHeader.cmake b/Modules/GenerateExportHeader.cmake
index f3f61f6ee..0d9a3b8ae 100644
--- a/Modules/GenerateExportHeader.cmake
+++ b/Modules/GenerateExportHeader.cmake
@@ -18,7 +18,7 @@
 #             [PREFIX_NAME <prefix_name>]
 # )
 #
-# ADD_COMPILER_EXPORT_FLAGS( [FATAL_WARNINGS] )
+# ADD_COMPILER_EXPORT_FLAGS( [<output_variable>] )
 #
 # By default GENERATE_EXPORT_HEADER() generates macro names in a file name
 # determined by the name of the library. The ADD_COMPILER_EXPORT_FLAGS function