diff --git a/toonz/sources/tnztools/toonzvectorbrushtool.cpp b/toonz/sources/tnztools/toonzvectorbrushtool.cpp
index c539159..0a54da8 100644
--- a/toonz/sources/tnztools/toonzvectorbrushtool.cpp
+++ b/toonz/sources/tnztools/toonzvectorbrushtool.cpp
@@ -625,6 +625,12 @@ void ToonzVectorBrushTool::onDeactivate() {
   /*---
   * �h���b�O���Ƀc�[�����؂�ւ�����ꍇ�ɔ����AonDeactivate�ɂ�MouseRelease�Ɠ����������s��
   * ---*/
+
+  // End current stroke.
+  if (m_active && m_enabled) {
+      leftButtonUp(m_lastDragPos, m_lastDragEvent);
+  }
+
   if (m_tileSaver && !m_isPath) {
     m_enabled = false;
   }
@@ -718,6 +724,10 @@ void ToonzVectorBrushTool::leftButtonDrag(const TPointD &pos,
     m_brushPos = m_mousePos = pos;
     return;
   }
+
+  m_lastDragPos = pos;
+  m_lastDragEvent = e;
+
   double thickness = (m_pressure.getValue() || m_isPath)
                          ? computeThickness(e.m_pressure, m_thickness, m_isPath)
                          : m_thickness.getValue().second * 0.5;
diff --git a/toonz/sources/tnztools/toonzvectorbrushtool.h b/toonz/sources/tnztools/toonzvectorbrushtool.h
index 887da39..21fad23 100644
--- a/toonz/sources/tnztools/toonzvectorbrushtool.h
+++ b/toonz/sources/tnztools/toonzvectorbrushtool.h
@@ -192,6 +192,9 @@ protected:
   ��ƒ���FrameId���N���b�N���ɕۑ����A�}�E�X�����[�X���iUndo�̓o�^���j�ɕʂ̃t���[����
   �ړ����Ă����Ƃ��̕s����C������B---*/
   TFrameId m_workingFrameId;
+
+  TPointD m_lastDragPos; //!< Position where mouse was last dragged.
+  TMouseEvent m_lastDragEvent; //!< Previous mouse-drag event.
 };
 
 #endif  // TOONZVECTORBRUSHTOOL_H