diff --git a/orcid-api-common/src/main/java/org/orcid/api/common/OrcidApiConstants.java b/orcid-api-common/src/main/java/org/orcid/api/common/OrcidApiConstants.java
index 1d3398d2bb8..2b291e11da0 100644
--- a/orcid-api-common/src/main/java/org/orcid/api/common/OrcidApiConstants.java
+++ b/orcid-api-common/src/main/java/org/orcid/api/common/OrcidApiConstants.java
@@ -31,8 +31,11 @@ public class OrcidApiConstants {
 
     public static final String ORCID_XML = "application/orcid+xml; qs=3";
     public static final String ORCID_JSON = "application/orcid+json; qs=2";
-    public static final String TEXT_TURTLE = "text/turtle; charset=utf8; qs=3";
-    public static final String TEXT_N3 = "text/n3; charset=utf8; qs=2";
+    public static final String TEXT_TURTLE = "text/turtle; qs=3";
+    public static final String TEXT_TURTLE_UTF8 = "text/turtle; charset=utf8; qs=3";
+    public static final String TEXT_N3 = "text/n3; qs=2";
+    public static final String TEXT_N3_UTF8 = "text/n3; charset=utf8; qs=2";
+
     public static final String APPLICATION_RDFXML = "application/rdf+xml; qs=2";
     public static final String VND_ORCID_XML = "application/vnd.orcid+xml; qs=5";
     public static final String VND_ORCID_JSON = "application/vnd.orcid+json; qs=4";