diff --git a/src/libslic3r/Print.cpp b/src/libslic3r/Print.cpp
index 1b901341dc..64fe751a3f 100644
--- a/src/libslic3r/Print.cpp
+++ b/src/libslic3r/Print.cpp
@@ -1266,7 +1266,8 @@ std::string Print::validate() const
             total_copies_count += object->instances().size();
         // #4043
         if (total_copies_count > 1 && ! m_config.complete_objects.value)
-            return L("The Spiral Vase option can only be used when printing a single object.");
+            return L("Only a single object may be printed at a time in Spiral Vase mode. "
+                     "Either remove all but the last object, or enable sequential mode by \"complete_objects\".");
         assert(m_objects.size() == 1);
         size_t num_regions = 0;
         for (const std::vector<std::pair<t_layer_height_range, int>> &volumes_per_region : m_objects.front()->region_volumes)