diff --git a/dmp-backend/data/src/main/java/eu/eudat/data/entities/Credential.java b/dmp-backend/data/src/main/java/eu/eudat/data/entities/Credential.java
index 88e3dc36d..ec6784281 100644
--- a/dmp-backend/data/src/main/java/eu/eudat/data/entities/Credential.java
+++ b/dmp-backend/data/src/main/java/eu/eudat/data/entities/Credential.java
@@ -34,7 +34,7 @@ public class Credential implements DataEntity<Credential, UUID> {
 	private Integer provider;
 	@Column(name = "\"Public\"", nullable = false)
 	private String publicValue;
-	@Column(name = "\"Email\"", nullable = false)
+	@Column(name = "\"Email\"")
 	private String email;
 	@Column(name = "\"Secret\"", nullable = false)
 	private String secret;
diff --git a/dmp-backend/data/src/main/java/eu/eudat/data/entities/UserInfo.java b/dmp-backend/data/src/main/java/eu/eudat/data/entities/UserInfo.java
index ca8b5ab51..7c243b3a5 100644
--- a/dmp-backend/data/src/main/java/eu/eudat/data/entities/UserInfo.java
+++ b/dmp-backend/data/src/main/java/eu/eudat/data/entities/UserInfo.java
@@ -26,7 +26,7 @@ public class UserInfo implements DataEntity<UserInfo, UUID> {
 	private UUID id;
 
 
-	@Column(name = "email", nullable = false)
+	@Column(name = "email")
 	private String email = null;
 
 	@Column(name = "authorization_level", nullable = false)