diff --git a/hgext3rd/tweakdefaults.py b/hgext3rd/tweakdefaults.py
--- a/hgext3rd/tweakdefaults.py
+++ b/hgext3rd/tweakdefaults.py
@@ -700,7 +700,9 @@
     """Wraps analyzer to detect the use of colons in the revisions"""
     result = orig(x)
 
-    enabled = ui.configbool('tweakdefaults', 'singlecolonwarn')
+    warn = ui.configbool('tweakdefaults', 'singlecolonwarn')
+    abort = ui.configbool('tweakdefaults', 'singlecolonabort')
+    enabled = warn or abort
 
     # The last condition is added so that warnings are not shown if
     # hg log --follow is invoked w/o arguments
@@ -708,8 +710,11 @@
             (x[0] in ('range', 'rangepre', 'rangepost')) and \
             x != ('rangepre', ('symbol', '.')):
         msg = ui.config('tweakdefaults', 'singlecolonmsg',
-                        _("warning: use of ':' is deprecated"))
-        ui.warn('%s\n' % msg)
+                        _("use of ':' is deprecated"))
+        if abort:
+            raise error.Abort('%s' % msg)
+        if warn:
+            ui.warn(_('warning: %s\n') % msg)
 
     return result
 
diff --git a/tests/test-tweakdefaults-revsets.t b/tests/test-tweakdefaults-revsets.t
--- a/tests/test-tweakdefaults-revsets.t
+++ b/tests/test-tweakdefaults-revsets.t
@@ -40,5 +40,13 @@
 
 Check that the custom message can be used
   $ hg log -T '{rev} ' -r '0:' --config tweakdefaults.singlecolonwarn=1 --config tweakdefaults.singlecolonmsg="hey stop that"
-  hey stop that
+  warning: hey stop that
   0 1 2  (no-eol)
+
+Check that we can abort as well
+  $ hg log -T '{rev} ' -r '0:' --config tweakdefaults.singlecolonabort=1
+  abort: use of ':' is deprecated
+  [255]
+  $ hg log -T '{rev} ' -r '0:' --config tweakdefaults.singlecolonabort=1 --config tweakdefaults.singlecolonmsg="no more colons"
+  abort: no more colons
+  [255]