diff --git a/wiki/GoogleTestAdvancedGuide.wiki b/wiki/GoogleTestAdvancedGuide.wiki
index 4dfc2056..9c4e9872 100644
--- a/wiki/GoogleTestAdvancedGuide.wiki
+++ b/wiki/GoogleTestAdvancedGuide.wiki
@@ -1075,11 +1075,13 @@ non-Windows platforms) the `TERM` environment variable is set to `xterm` or
 
 _Availability:_ Linux, Windows, Mac.
 
-=== Printing the Elapsed Time: `--gtest_print_time` ===
+=== Printing the Elapsed Time: `GTEST_PRINT_TIME` and `--gtest_print_time` ===
 
 By default, Google Test does not show you the time it takes to run
 each test.  To see that, run the test program with the
-`--gtest_print_time` command line flag.
+`--gtest_print_time` command line flag.  Setting the
+`GTEST_PRINT_TIME` environment variable to a non-zero value has the
+same effect.
 
 _Availability:_ Linux, Windows, Mac.