diff --git a/main.py b/main.py
index d72d9dc..2a1c93f 100755
--- a/main.py
+++ b/main.py
@@ -19,10 +19,10 @@
     return ('text', input())
 
 base_env = {
-    "system": {
+    "System": {
         "type": "module",
-        "print": do_system_print,
-        "read": do_system_read,
+        "Print": do_system_print,
+        "Read": do_system_read,
     }
 }
 
diff --git a/parse.py b/parse.py
index ad76322..5aa5398 100644
--- a/parse.py
+++ b/parse.py
@@ -30,9 +30,10 @@
                                 "If", "Then", "Else", "EndIf"]
                     if token in keywords:
                         type = "keyword"
+                        tokens.append((type, token.lower()))
                     else:
                         type = "symbol"
-                    tokens.append((type, token.lower()))
+                        tokens.append((type, token))
             token = ""
         else:
             token += symbol