diff --git a/src/slic3r/GUI/Gizmos/GLGizmosManager.cpp b/src/slic3r/GUI/Gizmos/GLGizmosManager.cpp
index fc789c3d2a..6cbb9ae401 100644
--- a/src/slic3r/GUI/Gizmos/GLGizmosManager.cpp
+++ b/src/slic3r/GUI/Gizmos/GLGizmosManager.cpp
@@ -1250,7 +1250,9 @@ bool GLGizmosManager::is_in_editing_mode(bool error_notification) const
 
 bool GLGizmosManager::is_hiding_instances() const
 {
-    return (m_common_gizmos_data->instances_hider() && m_common_gizmos_data->instances_hider()->is_valid());
+    return (m_common_gizmos_data
+         && m_common_gizmos_data->instances_hider()
+         && m_common_gizmos_data->instances_hider()->is_valid());
 }