diff --git a/survey.sh.in b/survey.sh.in
index 4123b6d..d6075a6 100644
--- a/survey.sh.in
+++ b/survey.sh.in
@@ -45,6 +45,8 @@
 echo
 echo "oslevel: `oslevel 2>/dev/null`"
 echo
+echo "oslevel-r: `oslevel -r 2>/dev/null`"
+echo
 echo "cc: $CC"
 echo
 echo "cflags: $CFLAGS"