diff --git a/fractal-gtk/src/app/connect/send.rs b/fractal-gtk/src/app/connect/send.rs
index ebe32fbc..e398970f 100644
--- a/fractal-gtk/src/app/connect/send.rs
+++ b/fractal-gtk/src/app/connect/send.rs
@@ -2,6 +2,7 @@ use gdk;
 use gtk;
 use gtk::prelude::*;
 use sourceview::BufferExt;
+use appop::attach;
 
 use app::App;
 
@@ -56,7 +57,7 @@ impl App {
 
         op = self.op.clone();
         msg_entry.connect_paste_clipboard(move |_| {
-            op.lock().unwrap().paste();
+            attach::paste(op.clone());
         });
 
         msg_entry.connect_focus_in_event(clone!(msg_entry_box => move |_, _| {
diff --git a/fractal-gtk/src/appop/attach.rs b/fractal-gtk/src/appop/attach.rs
index d12c6601..cb36a2b1 100644
--- a/fractal-gtk/src/appop/attach.rs
+++ b/fractal-gtk/src/appop/attach.rs
@@ -1,5 +1,6 @@
 use i18n::i18n;
 
+use std::sync::{Arc, Mutex};
 use std::fs::File;
 use std::io::prelude::*;
 use std::path::PathBuf;
@@ -22,24 +23,6 @@ use util::get_pixbuf_data;
 
 
 impl AppOp {
-    pub fn paste(&self) {
-        if let Some(display) = gdk::Display::get_default() {
-            if let Some(clipboard) = gtk::Clipboard::get_default(&display) {
-                if clipboard.wait_is_image_available() {
-                    if let Some(pixb) = clipboard.wait_for_image() {
-                        self.draw_image_paste_dialog(&pixb);
-
-                        // removing text from clipboard
-                        clipboard.set_text("");
-                        clipboard.set_image(&pixb);
-                    }
-                } else {
-                    // TODO: manage code pasting
-                }
-            }
-        }
-    }
-
     fn draw_image_paste_dialog(&self, pixb: &Pixbuf) {
         let w = pixb.get_width();
         let h = pixb.get_height();
@@ -107,3 +90,28 @@ fn store_pixbuf(pixb: &Pixbuf) -> Result<String, Error> {
 
     Ok(file)
 }
+
+/// This function receives the appop mutex to avoid lock the interface
+/// This was previously an appop method that receives &self, but that
+/// force us to lock the interface for the entire function that causes
+/// problems because we call to wait_is_image_available that makes that
+/// tries to continue the loop and that give us to a deadlock so
+/// this function minimize the lock and avoid that kind of problems
+/// See: https://gitlab.gnome.org/World/fractal/issues/284
+pub fn paste(op: Arc<Mutex<AppOp>>) {
+    if let Some(display) = gdk::Display::get_default() {
+        if let Some(clipboard) = gtk::Clipboard::get_default(&display) {
+            if clipboard.wait_is_image_available() {
+                if let Some(pixb) = clipboard.wait_for_image() {
+                    op.lock().unwrap().draw_image_paste_dialog(&pixb);
+
+                    // removing text from clipboard
+                    clipboard.set_text("");
+                    clipboard.set_image(&pixb);
+                }
+            } else {
+                // TODO: manage code pasting
+            }
+        }
+    }
+}
diff --git a/fractal-gtk/src/appop/mod.rs b/fractal-gtk/src/appop/mod.rs
index b8f1dd0e..36d83cc9 100644
--- a/fractal-gtk/src/appop/mod.rs
+++ b/fractal-gtk/src/appop/mod.rs
@@ -36,7 +36,7 @@ mod files;
 mod message;
 mod directory;
 mod notify;
-mod attach;
+pub mod attach;
 mod member;
 mod invite;
 mod about;