diff --git a/src/main/java/com/zaxxer/hikari/proxy/ConnectionProxy.java b/src/main/java/com/zaxxer/hikari/proxy/ConnectionProxy.java
index 28257846..e5a6c78b 100644
--- a/src/main/java/com/zaxxer/hikari/proxy/ConnectionProxy.java
+++ b/src/main/java/com/zaxxer/hikari/proxy/ConnectionProxy.java
@@ -161,7 +161,7 @@ public class ConnectionProxy implements IHikariConnectionProxy
     }
 
     @HikariInject
-    private void checkClosed() throws SQLException
+    protected void checkClosed() throws SQLException
     {
         if (_isClosed)
         {
@@ -432,7 +432,6 @@ public class ConnectionProxy implements IHikariConnectionProxy
         }
     }
 
-    @HikariInject
     public boolean isValid(int timeout) throws SQLException
     {
         if (_isClosed)