diff --git a/Modules/CheckFortranSourceCompiles.cmake b/Modules/CheckFortranSourceCompiles.cmake
index 0bdcffa8c7..20d1fd99ba 100644
--- a/Modules/CheckFortranSourceCompiles.cmake
+++ b/Modules/CheckFortranSourceCompiles.cmake
@@ -13,7 +13,7 @@
 # ``<var>``
 #   Variable to store whether the source code compiled.
 #   Will be created as an internal cache variable.
-# ``<fail-regex>``
+# ``FAIL_REGEX <fail-regex>``
 #   Fail if test output matches this regex.
 #
 # The following variables may be set before calling this macro to modify