diff --git a/scene/resources/dynamic_font.cpp b/scene/resources/dynamic_font.cpp
index 8e85a78a476..88092f463a3 100644
--- a/scene/resources/dynamic_font.cpp
+++ b/scene/resources/dynamic_font.cpp
@@ -965,6 +965,7 @@ SelfList<DynamicFont>::List *DynamicFont::dynamic_fonts = NULL;
 DynamicFont::DynamicFont() :
 		font_list(this) {
 
+	cache_id.size = 16;
 	spacing_top = 0;
 	spacing_bottom = 0;
 	spacing_char = 0;