diff --git a/modules/lib-bash/color-echo.sh b/modules/lib-bash/color-echo.sh
index e357bf70c..ef708b29c 100644
--- a/modules/lib-bash/color-echo.sh
+++ b/modules/lib-bash/color-echo.sh
@@ -1,3 +1,6 @@
+# The check for terminal output and color support is heavily inspired
+# by https://unix.stackexchange.com/a/10065.
+
 function setupColors() {
     normalColor=""
     errorColor=""