diff --git a/src/interfaces/jdbc/org/postgresql/core/BytePoolDim1.java b/src/interfaces/jdbc/org/postgresql/core/BytePoolDim1.java
index 61b58f2ec51..e78f46b4af2 100644
--- a/src/interfaces/jdbc/org/postgresql/core/BytePoolDim1.java
+++ b/src/interfaces/jdbc/org/postgresql/core/BytePoolDim1.java
@@ -21,7 +21,7 @@ public class BytePoolDim1 {
     /**
      *
      */
-    byte binit[][] = new byte[maxsize][0];
+    byte binit[][] = new byte[maxsize+1][0];
 
     /**
      * Construct a new pool