diff --git a/install/inc/schema_mysql.sql b/install/inc/schema_mysql.sql
index 0fed1d359f..32a4123aab 100644
--- a/install/inc/schema_mysql.sql
+++ b/install/inc/schema_mysql.sql
@@ -2185,7 +2185,7 @@ create index i_table_num on ca_attributes(table_num);
 create index i_element_id on ca_attributes(element_id);
 create index i_row_table_num on ca_attributes(row_id, table_num);
 create index i_prefetch ON ca_attributes(row_id, element_id, table_num);
-create index i_value_source on ca_attribute_values(value_source(255));
+create index i_value_source on ca_attributes(value_source(255));
 
 
 /*==========================================================================*/