diff --git a/src/main/java/com/alibaba/druid/sql/PagerUtils.java b/src/main/java/com/alibaba/druid/sql/PagerUtils.java
index 7fab066394..d9b8eb8867 100644
--- a/src/main/java/com/alibaba/druid/sql/PagerUtils.java
+++ b/src/main/java/com/alibaba/druid/sql/PagerUtils.java
@@ -323,7 +323,9 @@ public class PagerUtils {
         SQLSelectItem countItem = createCountItem(dbType);
         countSelectQuery.getSelectList().add(countItem);
 
-        countSelectQuery.setFrom(new SQLSubqueryTableSource(select));
+        SQLSubqueryTableSource fromSubquery = new SQLSubqueryTableSource(select);
+        fromSubquery.setAlias("ALIAS_COUNT");
+        countSelectQuery.setFrom(fromSubquery);
 
         SQLSelect countSelect = new SQLSelect(countSelectQuery);
         SQLSelectStatement countStmt = new SQLSelectStatement(countSelect);
diff --git a/src/test/java/com/alibaba/druid/bvt/sql/PagerUtilsTest_Count_MySql_0.java b/src/test/java/com/alibaba/druid/bvt/sql/PagerUtilsTest_Count_MySql_0.java
index 4ca0b17534..8a2c901796 100644
--- a/src/test/java/com/alibaba/druid/bvt/sql/PagerUtilsTest_Count_MySql_0.java
+++ b/src/test/java/com/alibaba/druid/bvt/sql/PagerUtilsTest_Count_MySql_0.java
@@ -37,7 +37,7 @@ public class PagerUtilsTest_Count_MySql_0 extends TestCase {
                             "\nFROM (SELECT type, COUNT(*)" + //
                             "\n\tFROM t" + //
                             "\n\tGROUP BY type" + //
-                            "\n\t)", result);
+                            "\n\t) ALIAS_COUNT", result);
     }
 
     public void test_mysql_union_0() throws Exception {
@@ -49,6 +49,6 @@ public class PagerUtilsTest_Count_MySql_0 extends TestCase {
                             "\n\tUNION" + //
                             "\n\tSELECT id, name" + //
                             "\n\tFROM t2" + //
-                            "\n\t)", result);
+                            "\n\t) ALIAS_COUNT", result);
     }
 }
diff --git a/src/test/java/com/alibaba/druid/bvt/sql/PagerUtilsTest_Count_Oracle_0.java b/src/test/java/com/alibaba/druid/bvt/sql/PagerUtilsTest_Count_Oracle_0.java
index 8d5384b978..c0858257d6 100644
--- a/src/test/java/com/alibaba/druid/bvt/sql/PagerUtilsTest_Count_Oracle_0.java
+++ b/src/test/java/com/alibaba/druid/bvt/sql/PagerUtilsTest_Count_Oracle_0.java
@@ -37,7 +37,7 @@ public class PagerUtilsTest_Count_Oracle_0 extends TestCase {
                             "\nFROM (SELECT type, COUNT(*)" + //
                             "\n\tFROM t" + //
                             "\n\tGROUP BY type" + //
-                            "\n\t)", result);
+                            "\n\t) ALIAS_COUNT", result);
     }
 
     public void test_oracle_union_0() throws Exception {
@@ -49,6 +49,6 @@ public class PagerUtilsTest_Count_Oracle_0 extends TestCase {
                             "\n\tUNION" + //
                             "\n\tSELECT id, name" + //
                             "\n\tFROM t2" + //
-                            "\n\t)", result);
+                            "\n\t) ALIAS_COUNT", result);
     }
 }
diff --git a/src/test/java/com/alibaba/druid/bvt/sql/PagerUtilsTest_Count_PG_0.java b/src/test/java/com/alibaba/druid/bvt/sql/PagerUtilsTest_Count_PG_0.java
index fdc02bba67..af2a7f7acf 100644
--- a/src/test/java/com/alibaba/druid/bvt/sql/PagerUtilsTest_Count_PG_0.java
+++ b/src/test/java/com/alibaba/druid/bvt/sql/PagerUtilsTest_Count_PG_0.java
@@ -37,7 +37,7 @@ public class PagerUtilsTest_Count_PG_0 extends TestCase {
                             "\nFROM (SELECT type, COUNT(*)" + //
                             "\n\tFROM t" + //
                             "\n\tGROUP BY type" + //
-                            "\n\t)", result);
+                            "\n\t) ALIAS_COUNT", result);
     }
 
     public void test_pg_union_0() throws Exception {
@@ -49,6 +49,6 @@ public class PagerUtilsTest_Count_PG_0 extends TestCase {
                             "\n\tUNION" + //
                             "\n\tSELECT id, name" + //
                             "\n\tFROM t2" + //
-                            "\n\t)", result);
+                            "\n\t) ALIAS_COUNT", result);
     }
 }
diff --git a/src/test/java/com/alibaba/druid/bvt/sql/PagerUtilsTest_Count_SQLServer_0.java b/src/test/java/com/alibaba/druid/bvt/sql/PagerUtilsTest_Count_SQLServer_0.java
index 2d64e340b2..917982e81c 100644
--- a/src/test/java/com/alibaba/druid/bvt/sql/PagerUtilsTest_Count_SQLServer_0.java
+++ b/src/test/java/com/alibaba/druid/bvt/sql/PagerUtilsTest_Count_SQLServer_0.java
@@ -37,7 +37,7 @@ public class PagerUtilsTest_Count_SQLServer_0 extends TestCase {
                             "\nFROM (SELECT type, COUNT(*)" + //
                             "\n\tFROM t" + //
                             "\n\tGROUP BY type" + //
-                            "\n\t)", result);
+                            "\n\t) ALIAS_COUNT", result);
     }
 
     public void test_sqlserver_union_0() throws Exception {
@@ -49,6 +49,6 @@ public class PagerUtilsTest_Count_SQLServer_0 extends TestCase {
                             "\n\tUNION" + //
                             "\n\tSELECT id, name" + //
                             "\n\tFROM t2" + //
-                            "\n\t)", result);
+                            "\n\t) ALIAS_COUNT", result);
     }
 }