diff -r 3821dfee2cfc -r 40739aef97f7 mercurial/templatekw.py
--- a/mercurial/templatekw.py	Thu Aug 03 14:32:50 2017 +0200
+++ b/mercurial/templatekw.py	Thu Aug 03 15:30:41 2017 +0200
@@ -783,7 +783,7 @@
     (EXPERIMENTAL)
     """
     args = pycompat.byteskwargs(args)
-    return showlist('trouble', args['ctx'].instabilities(), args)
+    return showlist('instability', args['ctx'].instabilities(), args)
 
 # tell hggettext to extract docstrings from these functions:
 i18nfunctions = keywords.values()