diff --git a/docs-core/src/main/java/com/sismics/docs/core/model/jpa/Tag.java b/docs-core/src/main/java/com/sismics/docs/core/model/jpa/Tag.java
index 4ad25f8b..b9e48674 100644
--- a/docs-core/src/main/java/com/sismics/docs/core/model/jpa/Tag.java
+++ b/docs-core/src/main/java/com/sismics/docs/core/model/jpa/Tag.java
@@ -50,7 +50,7 @@ public class Tag {
     /**
      * Tag name.
      */
-    @Column(name = "TAG_COLOR_C", nullable = false, length = 6)
+    @Column(name = "TAG_COLOR_C", nullable = false, length = 7)
     private String color;
 
     /**