diff --git a/scene/gui/rich_text_label.cpp b/scene/gui/rich_text_label.cpp
index 4be53839bef..3489b025983 100644
--- a/scene/gui/rich_text_label.cpp
+++ b/scene/gui/rich_text_label.cpp
@@ -268,7 +268,9 @@ if (m_height > line_height) {\
 						}
 
 						if (found_space) {
-							fw+=l.offset_caches[line]/l.space_caches[line];
+							int ln = MIN(l.offset_caches.size()-1,line);
+
+							fw+=l.offset_caches[ln]/l.space_caches[ln];
 						}
 
 					}