diff --git a/util/run-gnu-test.sh b/util/run-gnu-test.sh
index 53ec4fc98..9f8cc1923 100755
--- a/util/run-gnu-test.sh
+++ b/util/run-gnu-test.sh
@@ -2,7 +2,7 @@
 # `run-gnu-test.bash [TEST]`
 # run GNU test (or all tests if TEST is missing/null)
 #
-# UU_MAKE_PROFILE == 'debug' | 'release' ## build profile used for *uutils* build; may be supplied by caller, defaults to 'debug'
+# UU_MAKE_PROFILE == 'debug' | 'release' ## build profile used for *uutils* build; may be supplied by caller, defaults to 'release'
 
 # spell-checker:ignore (env/vars) GNULIB SRCDIR SUBDIRS ; (utils) shellcheck