diff --git a/modules/gdscript/language_server/gdscript_extend_parser.cpp b/modules/gdscript/language_server/gdscript_extend_parser.cpp
index f4c0c4d9bb..80f4721e2d 100644
--- a/modules/gdscript/language_server/gdscript_extend_parser.cpp
+++ b/modules/gdscript/language_server/gdscript_extend_parser.cpp
@@ -269,7 +269,7 @@ void ExtendGDScriptParser::parse_class_symbol(const GDScriptParser::ClassNode *p
 					if (j > 0) {
 						symbol.detail += ", ";
 					}
-					symbol.detail += m.signal->parameters[i]->identifier->name;
+					symbol.detail += m.signal->parameters[j]->identifier->name;
 				}
 				symbol.detail += ")";