diff --git a/MonteCarloMarginalizeCode/Code/bin/plot_posterior_corner.py b/MonteCarloMarginalizeCode/Code/bin/plot_posterior_corner.py
index f6c2b4666..bb908e851 100755
--- a/MonteCarloMarginalizeCode/Code/bin/plot_posterior_corner.py
+++ b/MonteCarloMarginalizeCode/Code/bin/plot_posterior_corner.py
@@ -254,6 +254,7 @@ def render_coordinates(coord_names,logparams=[]):
 parser.add_argument("--no-mod-psi",action="store_true",help="Default is to take psi mod pi. If present, does not do this")
 parser.add_argument("--downselect-parameter",action='append', help='Name of parameter to be used to eliminate grid points ')
 parser.add_argument("--downselect-parameter-range",action='append',type=str)
+parser.add_argument("--disable-special-ranges", action='store_true', help="Disable the default special parameter ranges. If not specified, the default ranges are used.")
 # ---- User-supplied coordinate-convert plugin (additive; the hardcoded RIFT
 #      conversion path is untouched).  When --supplementary-coordinate-code is
 #      omitted these flags are a no-op and plotting behaves byte-identically
@@ -491,7 +492,8 @@ def _materialize_plugin_columns(samples, source_label=""):
   'eccentricity':[opts.ecc_min,opts.ecc_max],
   'meanPerAno':[opts.meanPerAno_min,opts.meanPerAno_max]
 }
-
+if opts.disable_special_ranges:
+	special_param_ranges = {}
 #mc_range deprecated by generic bind_param
 #if opts.mc_range:
 #    special_param_ranges['mc'] = eval(opts.mc_range)