diff --git a/toonz/sources/tnztools/editassistantstool.cpp b/toonz/sources/tnztools/editassistantstool.cpp
index b18ec33..7a3ba76 100644
--- a/toonz/sources/tnztools/editassistantstool.cpp
+++ b/toonz/sources/tnztools/editassistantstool.cpp
@@ -17,6 +17,8 @@
 #include <tproperty.h>
 #include <tmetaimage.h>
 
+#include <toonzqt/tselectionhandle.h>
+
 // For Qt translation support
 #include <QCoreApplication>
 
@@ -437,6 +439,7 @@ protected:
 public:
   bool preLeftButtonDown() override {
     if (m_assistantType.getIndex() != 0) touchImage();
+    TTool::getApplication()->getCurrentSelection()->setSelection(0);
     return true;
   }