diff --git a/apm-sniffer/apm-sdk-plugin/postgresql-8.x-plugin/src/main/java/org/apache/skywalking/apm/plugin/jdbc/postgresql/PreparedStatementExecuteMethodsInterceptor.java b/apm-sniffer/apm-sdk-plugin/postgresql-8.x-plugin/src/main/java/org/apache/skywalking/apm/plugin/jdbc/postgresql/PreparedStatementExecuteMethodsInterceptor.java
index 6686e6be0602dd0178e1c6aba287e6f7ee332f1e..b723782ea198f7e21e8189f6c3029bcb09750579 100755
--- a/apm-sniffer/apm-sdk-plugin/postgresql-8.x-plugin/src/main/java/org/apache/skywalking/apm/plugin/jdbc/postgresql/PreparedStatementExecuteMethodsInterceptor.java
+++ b/apm-sniffer/apm-sdk-plugin/postgresql-8.x-plugin/src/main/java/org/apache/skywalking/apm/plugin/jdbc/postgresql/PreparedStatementExecuteMethodsInterceptor.java
@@ -58,7 +58,7 @@ public class PreparedStatementExecuteMethodsInterceptor implements InstanceMetho
             if (parameters != null && parameters.length > 0) {
                 int maxIndex = cacheObject.getMaxIndex();
                 String parameterString = buildParameterString(parameters, maxIndex);
-                int sqlParametersMaxLength = Config.Plugin.MySQL.SQL_PARAMETERS_MAX_LENGTH;
+                int sqlParametersMaxLength = Config.Plugin.POSTGRESQL.SQL_PARAMETERS_MAX_LENGTH;
                 if (sqlParametersMaxLength > 0 && parameterString.length() > sqlParametersMaxLength) {
                     parameterString = parameterString.substring(0, sqlParametersMaxLength) + "..." + "]";
                 }