diff --git a/magic-api/src/main/java/org/ssssssss/magicapi/modules/db/table/NamedTable.java b/magic-api/src/main/java/org/ssssssss/magicapi/modules/db/table/NamedTable.java
index 4e481fe6..148f8133 100644
--- a/magic-api/src/main/java/org/ssssssss/magicapi/modules/db/table/NamedTable.java
+++ b/magic-api/src/main/java/org/ssssssss/magicapi/modules/db/table/NamedTable.java
@@ -424,7 +424,7 @@ public class NamedTable extends Attributes<Object> {
 			params.addAll(where.getParams());
 		} else if (primaryValue != null) {
 			builder.append(" where ").append(this.primary).append(" = ?");
-			params.add(primaryValue);
+			params.add(String.valueOf(primaryValue));
 		} else {
 			throw new MagicAPIException("主键值不能为空");
 		}