diff --git a/factorbase/src/main/java/ca/sfu/cs/factorbase/lattice/short_rnid_LatticeGenerator.java b/factorbase/src/main/java/ca/sfu/cs/factorbase/lattice/short_rnid_LatticeGenerator.java
index 8646a41e..117b1bc9 100644
--- a/factorbase/src/main/java/ca/sfu/cs/factorbase/lattice/short_rnid_LatticeGenerator.java
+++ b/factorbase/src/main/java/ca/sfu/cs/factorbase/lattice/short_rnid_LatticeGenerator.java
@@ -139,7 +139,7 @@ public static void init() throws SQLException {
         maxNumberOfMembers = firstSets.size();
         Statement st = con2.createStatement();
     
-        st.execute("create table if not exists lattice_membership (name VARCHAR(398), member VARCHAR(398), rnid VARCHAR(199), PRIMARY KEY (name, member));");
+        st.execute("create table if not exists lattice_membership (name VARCHAR(398), member VARCHAR(398), PRIMARY KEY (name, member));");
         st.execute("create table if not exists lattice_rel (parent VARCHAR(398), child VARCHAR(398), removed VARCHAR(199), rnid VARCHAR(199), PRIMARY KEY (parent, child));");
         st.execute("create table if not exists lattice_set (name VARCHAR(199), length INT(11), PRIMARY KEY (name, length));");
 
diff --git a/factorbase/src/main/resources/scripts/model_manager.sql b/factorbase/src/main/resources/scripts/model_manager.sql
index e33591b8..3abccb5a 100644
--- a/factorbase/src/main/resources/scripts/model_manager.sql
+++ b/factorbase/src/main/resources/scripts/model_manager.sql
@@ -69,7 +69,7 @@ SELECT DISTINCT lattice_membership.name AS Rchain, Fid AS node
         lattice_membership,
         RNodes_BN_Nodes
     WHERE
-        RNodes_BN_Nodes.rnid = lattice_membership.rnid
+        RNodes_BN_Nodes.rnid = lattice_membership.member
     ORDER BY lattice_membership.name;
 
 ALTER TABLE Path_BN_nodes ADD INDEX `HashIndex`  (`Rchain`,`node`); /* May 7*/
@@ -127,7 +127,7 @@ from
     2Nodes,
     lattice_membership
 where
-    lattice_membership.rnid = RNodes.rnid
+    lattice_membership.member = RNodes.rnid
         and RNodes.pvid1 = 2Nodes.pvid1
         and RNodes.pvid2 = 2Nodes.pvid2
         and RNodes.TABLE_NAME = 2Nodes.TABLE_NAME