diff --git a/src/main/java/org/xbib/cql/elasticsearch/FilterGenerator.java b/src/main/java/org/xbib/cql/elasticsearch/FilterGenerator.java
index cad6100..bdd27f5 100644
--- a/src/main/java/org/xbib/cql/elasticsearch/FilterGenerator.java
+++ b/src/main/java/org/xbib/cql/elasticsearch/FilterGenerator.java
@@ -128,7 +128,7 @@ public class FilterGenerator implements Visitor {
                         case ALL: {
                             String field = arg1.toString();
                             String value = arg2 != null ? arg2.toString() : "";
-                            boolean phrase = arg2 instanceof Token && ((Token) arg2).isProtected();
+                            boolean phrase = arg2 instanceof Token && ((Token) arg2).isQuoted();
                             if (phrase) {
                                 builder.startArray("and");
                                 QuotedStringTokenizer qst = new QuotedStringTokenizer(value);
@@ -144,7 +144,7 @@ public class FilterGenerator implements Visitor {
                             break;
                         }
                         case ANY: {
-                            boolean phrase = arg2 instanceof Token && ((Token) arg2).isProtected();
+                            boolean phrase = arg2 instanceof Token && ((Token) arg2).isQuoted();
                             String field = arg1.toString();
                             String value = arg2 != null ? arg2.toString() : "";
                             if (phrase) {
diff --git a/src/main/java/org/xbib/cql/elasticsearch/QueryGenerator.java b/src/main/java/org/xbib/cql/elasticsearch/QueryGenerator.java
index 8d6bcb4..ff45eb3 100644
--- a/src/main/java/org/xbib/cql/elasticsearch/QueryGenerator.java
+++ b/src/main/java/org/xbib/cql/elasticsearch/QueryGenerator.java
@@ -197,7 +197,7 @@ public class QueryGenerator implements Visitor {
                             String field = arg1.toString();
                             String value = arg2 != null ? arg2.toString() : "";
                             if (tok2 != null) {
-                                if (tok2.isProtected()) {
+                                if (tok2.isQuoted()) {
                                     builder.startObject("match_phrase")
                                             .startObject(field)
                                             .field("query", tok2.getString())
@@ -264,7 +264,7 @@ public class QueryGenerator implements Visitor {
                             String from = null;
                             String to = null;
                             if (tok2 != null) {
-                                if (!tok2.isProtected()) {
+                                if (!tok2.isQuoted()) {
                                     throw new IllegalArgumentException("range within: unable to derive range from a non-phrase: " + value);
                                 }
                                 if (tok2.getStringList().size() != 2) {
diff --git a/src/main/java/org/xbib/cql/elasticsearch/ast/Token.java b/src/main/java/org/xbib/cql/elasticsearch/ast/Token.java
index 9ec3576..0e9af24 100644
--- a/src/main/java/org/xbib/cql/elasticsearch/ast/Token.java
+++ b/src/main/java/org/xbib/cql/elasticsearch/ast/Token.java
@@ -22,7 +22,7 @@ public class Token implements Node {
 
     public enum TokenClass {
 
-        NORMAL, ALL, WILDCARD, BOUNDARY, PROTECTED
+        NORMAL, ALL, WILDCARD, BOUNDARY, QUOTED
     }
 
     private TokenType type;
@@ -60,12 +60,12 @@ public class Token implements Node {
 
         }
         if (this.value != null) {
-            // protected?
+            // quoted?
             if (value.startsWith("\"") && value.endsWith("\"")) {
                 this.stringvalue = value;
                 this.value = value.substring(1, value.length() - 1).replaceAll("\\\\\"", "\"");
                 this.values = parseQuot(this.value);
-                tokenClass.add(TokenClass.PROTECTED);
+                tokenClass.add(TokenClass.QUOTED);
             }
             // wildcard?
             if (this.value.indexOf('*') >= 0 || this.value.indexOf('?') >= 0) {
@@ -182,8 +182,8 @@ public class Token implements Node {
         return sb.toString();
     }
 
-    public boolean isProtected() {
-        return tokenClass.contains(TokenClass.PROTECTED);
+    public boolean isQuoted() {
+        return tokenClass.contains(TokenClass.QUOTED);
     }
 
     public boolean isBoundary() {