From f0cee791700eff9d6ce52019a74d908c2cd5ac42 Mon Sep 17 00:00:00 2001
From: YuSanka <yusanka@gmail.com>
Date: Fri, 8 Feb 2019 17:36:13 +0100
Subject: [PATCH] Fix of #1768

---
 src/slic3r/GUI/GLCanvas3D.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/slic3r/GUI/GLCanvas3D.cpp b/src/slic3r/GUI/GLCanvas3D.cpp
index 69a3ea2bd7..bea4bd0b47 100644
--- a/src/slic3r/GUI/GLCanvas3D.cpp
+++ b/src/slic3r/GUI/GLCanvas3D.cpp
@@ -5810,7 +5810,7 @@ void GLCanvas3D::set_tooltip(const std::string& tooltip) const
             else
                 t->SetTip(tooltip);
         }
-        else
+        else if (!tooltip.empty()) // Avoid "empty" tooltips => unset of the empty tooltip leads to application crash under OSX
             m_canvas->SetToolTip(tooltip);
     }
 }