diff --git a/dspace/etc/oracle/database_schema_13-14.sql b/dspace/etc/oracle/database_schema_13-14.sql
index 3ac69863ba..a45164c840 100644
--- a/dspace/etc/oracle/database_schema_13-14.sql
+++ b/dspace/etc/oracle/database_schema_13-14.sql
@@ -156,7 +156,7 @@ CREATE INDEX metadatafield_schema_idx ON MetadataFieldRegistry(metadata_schema_i
 
 CREATE TABLE checksum_results
 (
-    result_code VARCHAR PRIMARY KEY,
+    result_code VARCHAR(64) PRIMARY KEY,
     result_description VARCHAR2(2000)
 );