diff --git a/backend/src/main/java/uk/ac/ebi/spot/ols/repository/solr/OlsSolrQuery.java b/backend/src/main/java/uk/ac/ebi/spot/ols/repository/solr/OlsSolrQuery.java
index b74500a84..58a895d67 100644
--- a/backend/src/main/java/uk/ac/ebi/spot/ols/repository/solr/OlsSolrQuery.java
+++ b/backend/src/main/java/uk/ac/ebi/spot/ols/repository/solr/OlsSolrQuery.java
@@ -68,8 +68,7 @@ public SolrQuery constructQuery() {
 				if(qf.length() > 0) {
 					qf.append(" ");
 				}
-				qf.append(ClientUtils.escapeQueryChars( getSolrPropertyName(searchField.propertyName,
-						exactMatch ? SearchType.WHOLE_FIELD : searchField.searchType)) );
+				qf.append(ClientUtils.escapeQueryChars( getSolrPropertyName(searchField.propertyName, exactMatch ? SearchType.WHOLE_FIELD : searchField.searchType)) );
 				qf.append("^");
 				qf.append(searchField.weight);
 			}
@@ -178,25 +177,22 @@ public BoostField(String propertyName, String propertyValue, int weight, SearchT
 	}
 
 	private String getSolrPropertyName(String propertyName, SearchType searchType) {
-		if (propertyName.compareTo("_json") == 0)
-			return propertyName;
-		else
-			switch(searchType) {
-				case CASE_INSENSITIVE_TOKENS:
-					return "lowercase_" + propertyName;
-				case CASE_SENSITIVE_TOKENS:
-					return propertyName;
-				case WHOLE_FIELD:
-					return "str_" + propertyName;
-				case EDGES:
-					return "edge_" + propertyName;
-				case WHITESPACE:
-					return "whitespace_" + propertyName;
-				case WHITESPACE_EDGES:
-					return "whitespace_edge_" + propertyName;
-				default:
-					throw new RuntimeException("unknown filter accuracy");
-			}
+		switch(searchType) {
+			case CASE_INSENSITIVE_TOKENS:
+				return "lowercase_" + propertyName;
+			case CASE_SENSITIVE_TOKENS:
+				return propertyName;
+			case WHOLE_FIELD:
+				return "str_" + propertyName;
+			case EDGES:
+				return "edge_" + propertyName;
+			case WHITESPACE:
+				return "whitespace_" + propertyName;
+			case WHITESPACE_EDGES:
+				return "whitespace_edge_" + propertyName;
+			default:
+				throw new RuntimeException("unknown filter accuracy");
+		}
 	}
 
 	private String getSolrPropertyValue(String propertyValue, SearchType searchType) {
diff --git a/backend/src/main/java/uk/ac/ebi/spot/ols/repository/v2/helpers/V2SearchFieldsParser.java b/backend/src/main/java/uk/ac/ebi/spot/ols/repository/v2/helpers/V2SearchFieldsParser.java
index a39c1b461..6a2cff813 100644
--- a/backend/src/main/java/uk/ac/ebi/spot/ols/repository/v2/helpers/V2SearchFieldsParser.java
+++ b/backend/src/main/java/uk/ac/ebi/spot/ols/repository/v2/helpers/V2SearchFieldsParser.java
@@ -25,7 +25,6 @@ public static void addSearchFieldsToQuery(OlsSolrQuery query, String searchField
                 query.addSearchField(field.property, field.weight, SearchType.CASE_INSENSITIVE_TOKENS);
             }
         }
-        query.addSearchField("_json", 1, SearchType.CASE_INSENSITIVE_TOKENS);
     }
 
     public static void addBoostFieldsToQuery(OlsSolrQuery query, String boostFields) {