diff --git a/src/main/java/xyz/wbsite/dbtool/javafx/po/MySqlDBmapper.java b/src/main/java/xyz/wbsite/dbtool/javafx/po/MySqlDBmapper.java
index 76149d2f..17d9c2e0 100644
--- a/src/main/java/xyz/wbsite/dbtool/javafx/po/MySqlDBmapper.java
+++ b/src/main/java/xyz/wbsite/dbtool/javafx/po/MySqlDBmapper.java
@@ -64,7 +64,7 @@ public class MySqlDBmapper extends AbstractDBmapper {
         if (FieldType.Boolean.name().equals(type.name())) {
             sb.append("TINYINT(1)");
         } else if (FieldType.Dict.name().equals(type.name())) {
-            sb.append("VARCHAR(50)");
+            sb.append("VARCHAR(10)");
         } else if (FieldType.Byte.name().equals(type.name())) {
             sb.append("TINYINT(3)");
         } else if (FieldType.Short.name().equals(type.name())) {
diff --git a/src/main/java/xyz/wbsite/dbtool/javafx/po/OracleDBmapper.java b/src/main/java/xyz/wbsite/dbtool/javafx/po/OracleDBmapper.java
index c35daf31..da063c74 100644
--- a/src/main/java/xyz/wbsite/dbtool/javafx/po/OracleDBmapper.java
+++ b/src/main/java/xyz/wbsite/dbtool/javafx/po/OracleDBmapper.java
@@ -15,7 +15,7 @@ public class OracleDBmapper extends AbstractDBmapper {
         if (FieldType.Boolean.name().equals(type.name())) {
             sb.append("CHAR(1)");
         } else if (FieldType.Dict.name().equals(type.name())) {
-            sb.append("VARCHAR(50)");
+            sb.append("VARCHAR(10)");
         } else if (FieldType.Byte.name().equals(type.name())) {
             sb.append("NUMBER(3)");
         } else if (FieldType.Short.name().equals(type.name())) {