diff --git a/toonz/sources/tnztools/editassistantstool.cpp b/toonz/sources/tnztools/editassistantstool.cpp
index 23f80d6..c0443f4 100644
--- a/toonz/sources/tnztools/editassistantstool.cpp
+++ b/toonz/sources/tnztools/editassistantstool.cpp
@@ -448,7 +448,7 @@ protected:
   }
 
   bool keyDown(QKeyEvent *keyEvent) override {
-    if (keyEvent->key() == Qt::Key_Delete) {
+    if (keyEvent->key() == Qt::Key_Backspace) {
       if (!m_dragging) {
         apply();
         bool success = false;