diff --git a/indra/newview/llpanelmarketplaceoutboxinventory.cpp b/indra/newview/llpanelmarketplaceoutboxinventory.cpp
index c14a0c837902825946ec0c401a74dc89fe77a21f..ff62cb23dbb18f6cc5b01fa6ff66d8e79e79136b 100644
--- a/indra/newview/llpanelmarketplaceoutboxinventory.cpp
+++ b/indra/newview/llpanelmarketplaceoutboxinventory.cpp
@@ -148,4 +148,9 @@ BOOL LLOutboxFolderViewItem::handleDoubleClick(S32 x, S32 y, MASK mask)
 	return TRUE;
 }
 
+void LLOutboxFolderViewItem::openItem()
+{
+	// Intentionally do nothing to block attaching items from the outbox
+}
+
 // eof
diff --git a/indra/newview/llpanelmarketplaceoutboxinventory.h b/indra/newview/llpanelmarketplaceoutboxinventory.h
index 167f371f0ecb7f63be4524e076bf806e411f30d8..a6c522b7c235401e411655856e1fa7a05a0c67e6 100644
--- a/indra/newview/llpanelmarketplaceoutboxinventory.h
+++ b/indra/newview/llpanelmarketplaceoutboxinventory.h
@@ -71,6 +71,7 @@ class LLOutboxFolderViewItem : public LLFolderViewItem
 
 	// virtual
 	BOOL handleDoubleClick(S32 x, S32 y, MASK mask);
+	void openItem();
 };