diff --git a/core/src/keyboard/modifiers.rs b/core/src/keyboard/modifiers.rs
index 45b44a55..2c3cab37 100644
--- a/core/src/keyboard/modifiers.rs
+++ b/core/src/keyboard/modifiers.rs
@@ -26,6 +26,8 @@ bitflags! {
         // const RLOGO = 0b001 << 9;
         /// No modifiers
         const NONE = 0;
+        /// The Caps Lock key
+        const CAPS_LOCK = 0b100 << 12;
     }
 }
 
diff --git a/winit/src/platform_specific/wayland/conversion.rs b/winit/src/platform_specific/wayland/conversion.rs
index c2ca825d..d102b8e1 100644
--- a/winit/src/platform_specific/wayland/conversion.rs
+++ b/winit/src/platform_specific/wayland/conversion.rs
@@ -64,10 +64,10 @@ pub fn modifiers_to_native(mods: Modifiers) -> keyboard::Modifiers {
     if mods.shift {
         native_mods = native_mods.union(keyboard::Modifiers::SHIFT);
     }
+    if mods.caps_lock {
+        native_mods = native_mods.union(keyboard::Modifiers::CAPS_LOCK);
+    }
     // TODO Ashley: missing modifiers as platform specific additions?
-    // if mods.caps_lock {
-    // native_mods = native_mods.union(keyboard::Modifier);
-    // }
     // if mods.num_lock {
     //     native_mods = native_mods.union(keyboard::Modifiers::);
     // }