diff --git a/sql/issue_145_shares.sql b/sql/issue_145_shares.sql
new file mode 100644
index 00000000..c8367230
--- /dev/null
+++ b/sql/issue_145_shares.sql
@@ -0,0 +1,2 @@
+ALTER TABLE  `shares` ADD  `difficulty` FLOAT NOT NULL AFTER  `solution` ;
+ALTER TABLE  `pool_worker` ADD  `difficulty` FLOAT NOT NULL AFTER  `password` ;