diff --git a/src/io/keyboard.js b/src/io/keyboard.js
index 667df734e..aaa9f86f4 100644
--- a/src/io/keyboard.js
+++ b/src/io/keyboard.js
@@ -90,6 +90,11 @@ class Keyboard {
             keyArg = keyArg[0];
         }
 
+        // Check for the space character.
+        if (keyArg === ' ') {
+            return 'space';
+        }
+
         return keyArg.toUpperCase();
     }