diff --git a/Subtrees/beast/modules/beast_core/native/beast_android_Network.cpp b/Subtrees/beast/modules/beast_core/native/beast_android_Network.cpp
index 460268d683..86ea9596b2 100644
--- a/Subtrees/beast/modules/beast_core/native/beast_android_Network.cpp
+++ b/Subtrees/beast/modules/beast_core/native/beast_android_Network.cpp
@@ -63,7 +63,6 @@ bool Process::openEmailWithAttachments (const String& targetEmailAddress,
 class WebInputStream
     : public InputStream
     , LeakChecked <WebInputStream>
-    , Uncopyable
 {
 public:
     //==============================================================================
diff --git a/Subtrees/beast/modules/beast_core/native/beast_mac_Network.mm b/Subtrees/beast/modules/beast_core/native/beast_mac_Network.mm
index 3893bfd5aa..8f3410185e 100644
--- a/Subtrees/beast/modules/beast_core/native/beast_mac_Network.mm
+++ b/Subtrees/beast/modules/beast_core/native/beast_mac_Network.mm
@@ -300,7 +300,6 @@ private:
 class WebInputStream
  : public InputStream
  , LeakChecked <WebInputStream>
- , Uncopyable
 {
 public:
     WebInputStream (const String& address_, bool isPost_, const MemoryBlock& postData_,