diff --git a/mysqltuner.pl b/mysqltuner.pl
index 117fc52..9b7aeee 100755
--- a/mysqltuner.pl
+++ b/mysqltuner.pl
@@ -66,7 +66,7 @@ my %opt = (
     "nogood"         => 0,
     "noinfo"         => 0,
     "debug"          => 0,
-    "nocolor"        => 0,
+    "nocolor"        => ( ! -t STDOUT ),
     "forcemem"       => 0,
     "forceswap"      => 0,
     "host"           => 0,