diff --git a/modules/gdscript/gdscript_editor.cpp b/modules/gdscript/gdscript_editor.cpp
index d91e32249e7..fa80c31984b 100644
--- a/modules/gdscript/gdscript_editor.cpp
+++ b/modules/gdscript/gdscript_editor.cpp
@@ -2054,7 +2054,7 @@ static void _find_identifiers_in_base(const GDScriptCompletionContext &p_context
 
 				if (!p_only_functions) {
 					List<PropertyInfo> members;
-					tmp.get_property_list(&members);
+					p_base.value.get_property_list(&members);
 
 					for (List<PropertyInfo>::Element *E = members.front(); E; E = E->next()) {
 						if (String(E->get().name).find("/") == -1) {