diff --git a/lib/rules_core/replacements.js b/lib/rules_core/replacements.js
index 4022df3..b5e2f64 100644
--- a/lib/rules_core/replacements.js
+++ b/lib/rules_core/replacements.js
@@ -19,6 +19,10 @@
 
 var RARE_RE = /\+-|\.\.|\?\?\?\?|!!!!|,,|--/;
 
+// Workaround for phantomjs - need regex without /g flag,
+// or root check will fail every second time
+var SCOPED_ABBR_TEST_RE = /\((c|tm|r|p)\)/i;
+
 var SCOPED_ABBR_RE = /\((c|tm|r|p)\)/ig;
 var SCOPED_ABBR = {
   'c': '©',
@@ -75,7 +79,7 @@ module.exports = function replace(state) {
 
     if (state.tokens[blkIdx].type !== 'inline') { continue; }
 
-    if (SCOPED_ABBR_RE.test(state.tokens[blkIdx].content)) {
+    if (SCOPED_ABBR_TEST_RE.test(state.tokens[blkIdx].content)) {
       replace_scoped(state.tokens[blkIdx].children);
     }