diff --git a/doc/src/sgml/release-12.sgml b/doc/src/sgml/release-12.sgml
index 8b668ade0f..e05aacaf3c 100644
--- a/doc/src/sgml/release-12.sgml
+++ b/doc/src/sgml/release-12.sgml
@@ -2479,7 +2479,9 @@ Author: Peter Eisentraut <peter@eisentraut.org>
 
       <para>
        This is enabled with by setting environment variable
-       <envar>PG_COLORS</envar>.  EXAMPLE?
+       <envar>PG_COLORS</envar> using ANSI escape codes for colors. For example,
+       the default setting is
+       <literal>PG_COLORS="error=01;31:warning=01;35:locus=01"</literal>
       </para>
      </listitem>