diff --git a/lib/set_parser.cpp b/lib/set_parser.cpp
index 807daef21..751b68b80 100644
--- a/lib/set_parser.cpp
+++ b/lib/set_parser.cpp
@@ -178,6 +178,10 @@ void SetParser::generateRE_parse1v2() {
 	var_patterns.push_back(vp);
 	vp = "\\w+"; // single word
 	var_patterns.push_back(vp);
+	vp = "\\w+"; // single word
+	var_patterns.push_back(vp);
+	vp = "\\w+(?:-\\w+)+"; // multiple words separated by dash, WITHOUT any spaces between words . Used for transaction isolation
+	var_patterns.push_back(vp);
 	for (auto it = quote_symbol.begin(); it != quote_symbol.end(); it++) {
 		string s = *it + vp + *it;
 		var_patterns.push_back(s); // add with quote