diff --git a/evennia/settings_default.py b/evennia/settings_default.py
index 3159eb9122..12284ddf4f 100644
--- a/evennia/settings_default.py
+++ b/evennia/settings_default.py
@@ -319,7 +319,10 @@ PROTOTYPE_MODULES = ["world.prototypes"]
 # Module holding settings/actions for the dummyrunner program (see the
 # dummyrunner for more information)
 DUMMYRUNNER_SETTINGS_MODULE = "evennia.server.profiling.dummyrunner_settings"
-
+# Additional mappings used to extend the existing Evennia ANSI mappings.
+# All mappings should be a tuple of a string to one of the constants provided
+# in ansi.py. For example, (r'%r', "\r\n")
+ADDITIONAL_ANSI_MAPPINGS = []
 ######################################################################
 # Default command sets
 ######################################################################
diff --git a/evennia/utils/ansi.py b/evennia/utils/ansi.py
index cb89babb0a..688b6aeda9 100644
--- a/evennia/utils/ansi.py
+++ b/evennia/utils/ansi.py
@@ -414,6 +414,7 @@ class ANSIParser(object):
         (r'|[W', ANSI_BACK_WHITE),    # light grey background
         (r'|[X', ANSI_BACK_BLACK)     # pure black background
         ]
+    ext_ansi_map += settings.ADDITIONAL_ANSI_MAPPINGS
 
     ansi_bright_bgs = [
         # "bright" ANSI backgrounds using xterm256 since ANSI