diff --git a/scripts/script.db b/scripts/script.db
index c091ceef7..58cbb6025 100644
--- a/scripts/script.db
+++ b/scripts/script.db
@@ -445,7 +445,7 @@ Entry { filename = "telnet-encryption.nse", categories = { "discovery", "safe",
 Entry { filename = "tftp-enum.nse", categories = { "discovery", "intrusive", } }
 Entry { filename = "tls-nextprotoneg.nse", categories = { "default", "discovery", "safe", } }
 Entry { filename = "traceroute-geolocation.nse", categories = { "discovery", "external", "safe", } }
-Entry { filename = "unittest.nse", categories = { } }
+Entry { filename = "unittest.nse", categories = { "safe", } }
 Entry { filename = "unusual-port.nse", categories = { "safe", } }
 Entry { filename = "upnp-info.nse", categories = { "default", "discovery", "safe", } }
 Entry { filename = "url-snarf.nse", categories = { "safe", } }
diff --git a/scripts/unittest.nse b/scripts/unittest.nse
index 029ce995f..aa525f18d 100644
--- a/scripts/unittest.nse
+++ b/scripts/unittest.nse
@@ -21,7 +21,7 @@ author = "Daniel Miller"
 
 license = "Same as Nmap--See http://nmap.org/book/man-legal.html"
 
-categories = {}
+categories = {"safe"}
 
 
 prerule = function() return stdnse.get_script_args("unittest.run") end