diff --git a/PlumedToHTML/PlumedLexer.py b/PlumedToHTML/PlumedLexer.py
index c5f1560..d655514 100644
--- a/PlumedToHTML/PlumedLexer.py
+++ b/PlumedToHTML/PlumedLexer.py
@@ -26,8 +26,10 @@ class PlumedLexer(RegexLexer):
             (r'(\w+)(=)(@\S+:)((?s)\{.*?\})', bygroups(Name.Attribute, Text, Name.Constant, Generic)),  
             # Find special replica syntax without brackets
             (r'(\w+)(=)(@\S+:)(\S+\b)', bygroups(Name.Attribute, Text, Name.Constant, Generic)),
-            # Find KEYWORD with brackets around value
+            # Find KEYWORD with {} brackets around value
             (r'(\w+)(=)((?s)\{.*?\})', bygroups(Name.Attribute, Text, Generic)),
+            # Find KEYWORD with () brackets around value 
+            (r'(\w+)(=)((?s)\(.*?\))', bygroups(Name.Attribute, Text, Generic)),
             # Find KEYWORD=whatever 
             (r'(\w+)(=)(\S+\b)', bygroups(Name.Attribute, Text, Generic))
          ],
diff --git a/setup.py b/setup.py
index 5dd1123..abab29c 100644
--- a/setup.py
+++ b/setup.py
@@ -6,7 +6,7 @@
 
 setuptools.setup(
      name='PlumedToHTML',  
-     version='0.71',
+     version='0.72',
      author="Gareth Tribello",
      author_email="gareth.tribello@gmail.com",
      description="A package for creating pretified HTML for PLUMED files",
diff --git a/tdata/lexertests.json b/tdata/lexertests.json
index 5e434ad..50b1de3 100644
--- a/tdata/lexertests.json
+++ b/tdata/lexertests.json
@@ -79,6 +79,10 @@
        {
          "input": "# This is a comment \n phi: TORSION ATOMS=1,2,3,4 # This is also a comment with : a colon",
          "output": "<div class=\"highlight\"><pre><span></span><span class=\"c\"># This is a comment </span>\n <span class=\"s\">phi</span>: <span class=\"k\">TORSION</span> <span class=\"na\">ATOMS</span>=<span class=\"g\">1,2,3,4</span> <span class=\"c\"># This is also a comment with : a colon</span>\n</pre></div>\n"
+       },
+       {
+         "input": "st_saxs: STATS ARG=(SAXS\\.q-.*) PARARG=(SAXS\\.exp-.*)",
+         "output": "<div class=\"highlight\"><pre><span></span><span class=\"s\">st_saxs</span>: <span class=\"k\">STATS</span> <span class=\"na\">ARG</span>=<span class=\"g\">(SAXS\\.q-.*)</span> <span class=\"na\">PARARG</span>=<span class=\"g\">(SAXS\\.exp-.*)</span>\n</pre></div>\n"
        }
    ]
 }