diff --git a/plugins/itemsync/filewatcher.cpp b/plugins/itemsync/filewatcher.cpp
index 66ee9ba7d..1c920b42b 100644
--- a/plugins/itemsync/filewatcher.cpp
+++ b/plugins/itemsync/filewatcher.cpp
@@ -25,7 +25,7 @@ const QLatin1String mimeNoSave(COPYQ_MIME_PREFIX_ITEMSYNC "no-save");
 const QLatin1String mimeSyncPath(COPYQ_MIME_PREFIX_ITEMSYNC "sync-path");
 const QLatin1String mimeNoFormat(COPYQ_MIME_PREFIX_ITEMSYNC "no-format");
 const QLatin1String mimeUnknownFormats(COPYQ_MIME_PREFIX_ITEMSYNC "unknown-formats");
-const QLatin1String mimePrivatePrefix(COPYQ_MIME_PREFIX_ITEMSYNC_PRIVATE);
+const QLatin1String mimePrivateSyncPrefix(COPYQ_MIME_PREFIX_ITEMSYNC_PRIVATE);
 const QLatin1String mimeOldBaseName(COPYQ_MIME_PREFIX_ITEMSYNC_PRIVATE "old-basename");
 const QLatin1String mimeHashPrefix(COPYQ_MIME_PREFIX_ITEMSYNC_PRIVATE "hash");
 
@@ -647,6 +647,8 @@ void FileWatcher::updateItems()
             const QModelIndex index = m_model->index(row, 0);
             if ( !oldBaseName(index).isEmpty() )
                 m_batchIndexData.append(index);
+            else
+                COPYQ_LOG_VERBOSE("Would create item");
         }
 
         m_lastBatchIndex = -1;
diff --git a/plugins/itemsync/filewatcher.h b/plugins/itemsync/filewatcher.h
index 3cb19f749..9d0eff3be 100644
--- a/plugins/itemsync/filewatcher.h
+++ b/plugins/itemsync/filewatcher.h
@@ -18,7 +18,7 @@ struct Ext;
 struct BaseNameExtensions;
 
 #define COPYQ_MIME_PREFIX_ITEMSYNC COPYQ_MIME_PREFIX "itemsync-"
-#define COPYQ_MIME_PREFIX_ITEMSYNC_PRIVATE COPYQ_MIME_PREFIX "itemsync-private-"
+#define COPYQ_MIME_PREFIX_ITEMSYNC_PRIVATE COPYQ_MIME_PRIVATE_PREFIX "itemsync-"
 extern const QLatin1String mimeExtensionMap;
 extern const QLatin1String mimeBaseName;
 extern const QLatin1String mimeNoSave;
@@ -26,7 +26,7 @@ extern const QLatin1String mimeSyncPath;
 extern const QLatin1String mimeNoFormat;
 extern const QLatin1String mimeUnknownFormats;
 
-extern const QLatin1String mimePrivatePrefix;
+extern const QLatin1String mimePrivateSyncPrefix;
 extern const QLatin1String mimeOldBaseName;
 extern const QLatin1String mimeHashPrefix;
 
diff --git a/plugins/itemsync/itemsync.cpp b/plugins/itemsync/itemsync.cpp
index 38ccd0489..8d3466d73 100644
--- a/plugins/itemsync/itemsync.cpp
+++ b/plugins/itemsync/itemsync.cpp
@@ -483,7 +483,7 @@ QVariantMap ItemSyncSaver::copyItem(const QAbstractItemModel &, const QVariantMa
     QVariantMap copiedItemData;
     for (auto it = itemData.begin(); it != itemData.constEnd(); ++it) {
         const auto &format = it.key();
-        if ( !format.startsWith(mimePrivatePrefix) )
+        if ( !format.startsWith(mimePrivateSyncPrefix) )
             copiedItemData[format] = it.value();
     }
 
diff --git a/src/common/mimetypes.cpp b/src/common/mimetypes.cpp
index 07c832af9..d00e8ebdc 100644
--- a/src/common/mimetypes.cpp
+++ b/src/common/mimetypes.cpp
@@ -4,6 +4,7 @@
 
 #include <QLatin1String>
 
+const QLatin1String mimePrivatePrefix(COPYQ_MIME_PRIVATE_PREFIX);
 const QLatin1String mimeText("text/plain");
 const QLatin1String mimeTextUtf8("text/plain;charset=utf-8");
 const QLatin1String mimeHtml("text/html");
diff --git a/src/common/mimetypes.h b/src/common/mimetypes.h
index b1dbbe4a3..427f0339a 100644
--- a/src/common/mimetypes.h
+++ b/src/common/mimetypes.h
@@ -5,6 +5,9 @@
 class QLatin1String;
 
 #define COPYQ_MIME_PREFIX "application/x-copyq-"
+// Prefix for MIME format not visible to user for data private to plugins.
+#define COPYQ_MIME_PRIVATE_PREFIX COPYQ_MIME_PREFIX "private-"
+extern const QLatin1String mimePrivatePrefix;
 extern const QLatin1String mimeText;
 extern const QLatin1String mimeTextUtf8;
 extern const QLatin1String mimeHtml;
diff --git a/src/item/clipboarditem.cpp b/src/item/clipboarditem.cpp
index 214108da8..7d77378ad 100644
--- a/src/item/clipboarditem.cpp
+++ b/src/item/clipboarditem.cpp
@@ -63,7 +63,14 @@ bool ClipboardItem::setData(const QVariantMap &data)
     if (m_data == data)
         return false;
 
+    const auto oldData = m_data;
     m_data = data;
+
+    for (auto it = oldData.constBegin(); it != oldData.constEnd(); ++it) {
+        if (it.key().startsWith(mimePrivatePrefix))
+            m_data[it.key()] = it.value();
+    }
+
     invalidateDataHash();
     return true;
 }