diff --git a/lib/os/OS.snow b/lib/os/OS.snow
index f985171..6026d43 100644
--- a/lib/os/OS.snow
+++ b/lib/os/OS.snow
@@ -1,4 +1,4 @@
-module: Main
+module: os
     import: os
     function: print
         parameter:
diff --git a/playground/Demo/Demo14/OS.snow b/playground/Demo/Demo14/OS.snow
index f985171..6026d43 100644
--- a/playground/Demo/Demo14/OS.snow
+++ b/playground/Demo/Demo14/OS.snow
@@ -1,4 +1,4 @@
-module: Main
+module: os
     import: os
     function: print
         parameter: