diff --git a/include/modules/sway/language.hpp b/include/modules/sway/language.hpp
index 19441668..92e2bbaa 100644
--- a/include/modules/sway/language.hpp
+++ b/include/modules/sway/language.hpp
@@ -32,12 +32,7 @@ class Language : public ALabel, public sigc::trackable {
     std::string short_name;
     std::string variant;
     std::string short_description;
-    std::string country_flag() const {
-      static std::string result = "\xf0\x9f\x87\xff\xf0\x9f\x87\xff";
-      result[3] = short_name[0] - 0xbb;
-      result[7] = short_name[1] - 0xbb;
-      return result;
-    }
+    std::string country_flag() const;
   };
 
   class XKBContext {
diff --git a/src/modules/sway/language.cpp b/src/modules/sway/language.cpp
index bdd4b998..1b12ab05 100644
--- a/src/modules/sway/language.cpp
+++ b/src/modules/sway/language.cpp
@@ -213,4 +213,11 @@ Language::XKBContext::~XKBContext() {
   rxkb_context_unref(context_);
   delete layout_;
 }
+
+std::string Language::Layout::country_flag() const {
+  static std::string result = "\xf0\x9f\x87\xff\xf0\x9f\x87\xff";
+  result[3] = short_name[0] - 0xbb;
+  result[7] = short_name[1] - 0xbb;
+  return result;
+}
 }  // namespace waybar::modules::sway