diff --git a/blueprintcompiler/language/values.py b/blueprintcompiler/language/values.py
index 63cf4fc..96787ee 100644
--- a/blueprintcompiler/language/values.py
+++ b/blueprintcompiler/language/values.py
@@ -211,12 +211,12 @@ class Flag(AstNode):
         return self.tokens["value"]
 
     @property
-    def value(self) -> T.Optional[int]:
+    def value(self) -> T.Optional[str]:
         type = self.context[ValueTypeCtx].value_type
         if not isinstance(type, Enumeration):
             return None
         elif member := type.members.get(self.name):
-            return member.value
+            return member.nick
         else:
             return None
 
diff --git a/blueprintcompiler/lsp.py b/blueprintcompiler/lsp.py
index 0659154..c4076b4 100644
--- a/blueprintcompiler/lsp.py
+++ b/blueprintcompiler/lsp.py
@@ -118,6 +118,7 @@ class LanguageServer:
         self.client_capabilities = {}
         self.client_supports_completion_choice = False
         self._open_files: T.Dict[str, OpenFile] = {}
+        self._exited = False
 
     def run(self):
         # Read <doc> tags from gir files. During normal compilation these are
@@ -125,7 +126,7 @@ class LanguageServer:
         xml_reader.PARSE_GIR.add("doc")
 
         try:
-            while True:
+            while not self._exited:
                 line = ""
                 content_len = -1
                 while content_len == -1 or (line != "\n" and line != "\r\n"):
@@ -221,6 +222,14 @@ class LanguageServer:
             },
         )
 
+    @command("shutdown")
+    def shutdown(self, id, params):
+        self._send_response(id, None)
+
+    @command("exit")
+    def exit(self, id, params):
+        self._exited = True
+
     @command("textDocument/didOpen")
     def didOpen(self, id, params):
         doc = params.get("textDocument")
diff --git a/tests/samples/flags.ui b/tests/samples/flags.ui
index 2f0a26e..44eb2c4 100644
--- a/tests/samples/flags.ui
+++ b/tests/samples/flags.ui
@@ -7,7 +7,7 @@ corresponding .blp file and regenerate this file with blueprint-compiler.
 <interface>
   <requires lib="gtk" version="4.0"/>
   <object class="GApplication">
-    <property name="flags">1|4</property>
+    <property name="flags">is-service|handles-open</property>
   </object>
   <object class="GtkEventControllerScroll">
     <property name="flags">1</property>