diff --git a/db/zm_update-1.37.57.sql b/db/zm_update-1.37.57.sql
index a42f82af3..aa9eb2491 100644
--- a/db/zm_update-1.37.57.sql
+++ b/db/zm_update-1.37.57.sql
@@ -12,7 +12,7 @@ SET @s = (SELECT IF(
 "SELECT 'Object_Types table exists'",
 "CREATE TABLE Object_Types (
   Id  INTEGER NOT NULL AUTO_INCREMENT,
-  Name  TEXT UNIQUE,
+  Name  VARCHAR(32) UNIQUE,
   Human TEXT,
   PRIMARY KEY (Id)
 )"
diff --git a/db/zm_update-1.37.58.sql b/db/zm_update-1.37.58.sql
index 3dd305d0f..9a2a5f7fe 100644
--- a/db/zm_update-1.37.58.sql
+++ b/db/zm_update-1.37.58.sql
@@ -40,7 +40,7 @@ SET @s = (SELECT IF(
 "SELECT 'Object_Types table exists'",
 "CREATE TABLE Object_Types (
   Id  INTEGER NOT NULL AUTO_INCREMENT,
-  Name  TEXT UNIQUE,
+  Name  VARCHAR(32) UNIQUE,
   Human TEXT,
   PRIMARY KEY (Id)
 )"