diff --git a/src/babashka/impl/proxy.clj b/src/babashka/impl/proxy.clj
index 6ab04e94..cade9f82 100644
--- a/src/babashka/impl/proxy.clj
+++ b/src/babashka/impl/proxy.clj
@@ -103,15 +103,15 @@
 
       ["java.io.OutputStream" #{}]
       (proxy [java.io.OutputStream] []
-        (close [] (if-let [m (get methods 'close)]
-                    (m this)
-                    (proxy-super close)))
-        (flush [] (if-let [m (get methods 'flush)]
-                    (m this)
-                    (proxy-super flush)))
+        (close [] (when-let [m (get methods 'close)]
+                    (m this)))
+        (flush [] (when-let [m (get methods 'flush)]
+                    (m this)))
         (write
-          ([b] ((method-or-bust methods 'write) this b))
-          ([b off len] ((method-or-bust methods 'write) this b off len))))
+          ([b]
+           ((method-or-bust methods 'write) this b))
+          ([b off len]
+           ((method-or-bust methods 'write) this b off len))))
       , ;; keep this for merge friendliness
       )))