diff --git a/src/tests/net/sf/persist/tests/performance/PerformanceH2.java b/src/tests/net/sf/persist/tests/performance/PerformanceH2.java
index 4791344..8ab07f4 100644
--- a/src/tests/net/sf/persist/tests/performance/PerformanceH2.java
+++ b/src/tests/net/sf/persist/tests/performance/PerformanceH2.java
@@ -122,7 +122,7 @@ public static void main(String[] args) throws SQLException, IOException {
 		
 		
 		// find a single id to be used by select by primary key
-		long id = persist.read(int.class, "select min(id) from all_types");
+		long id = persist.read(long.class, "select min(id) from all_types");
 		
 		// read