diff --git a/src/work-calendar.cpp b/src/work-calendar.cpp
index f088182..ba90196 100644
--- a/src/work-calendar.cpp
+++ b/src/work-calendar.cpp
@@ -55,6 +55,7 @@ void init(){
 }
 
 static char* savefile_path = "./calendar";
+static char* wiki_url = "https://gitea.ammerhai.com/Ammerhai/work-calendar/wiki"; 
 
 static const char* month_names[] = {"Januar", "Februar", "März", "April", "Mai", "Juni", "Juli", "August", "September", "Oktober", "November", "Dezember"};
 
@@ -193,7 +194,9 @@ void per_frame(){
 
         if (ImGui::BeginMenu("Hilfe")) {
             ImGui::MenuItem("Demo", NULL, &show_demo_window);
-            ImGui::MenuItem("Wiki", NULL);
+            if (ImGui::MenuItem("Wiki", NULL)) {
+                ImGui::GetPlatformIO().Platform_OpenInShellFn(ImGui::GetCurrentContext(), wiki_url);
+            }
             ImGui::Separator();
             ImGui::MenuItem("Über", NULL);
             ImGui::EndMenu();