diff --git a/src/core/layout.rs b/src/core/layout.rs
index 1a9b2e1..2dd2506 100644
--- a/src/core/layout.rs
+++ b/src/core/layout.rs
@@ -443,7 +443,7 @@ impl Key {
     }
 }
 
-const KEYSYMS: [(&str, Keysym, &str); 23] = [
+const KEYSYMS: [(&str, Keysym, &str); 24] = [
     ("\\#", Keysym::numbersign, "#"),
     ("\\?", Keysym::question, "?"),
     ("\\@", Keysym::at, "@"),
@@ -463,6 +463,7 @@ const KEYSYMS: [(&str, Keysym, &str); 23] = [
     ("right", Keysym::Right, "→"),
     ("shift", Keysym::Shift_L, "⇧"),
     ("space", Keysym::space, " "),
+    ("switch_greekmath", Keysym::Scroll_Lock, "πλ∇¬"),
     ("switch_numeric", Keysym::Num_Lock, "123+"),
     ("switch_text", Keysym::Caps_Lock, "ABC"),
     ("tab", Keysym::Tab, "⭾"),