diff --git a/docs/project-syntax-example/common.zrl b/docs/project-syntax-example/common.zrl
index 92a7a9e..f170471 100644
--- a/docs/project-syntax-example/common.zrl
+++ b/docs/project-syntax-example/common.zrl
@@ -1,11 +1,11 @@
-!!
+!
 ! Note that these look like classes but act like structs
 ! the methods actually have a implied struct as their first argument
-!!
+!
 
-!!
+!
 ! Camera .
-!!
+!
 type Camera {
   init(real[3] pos, real[3] look) {
     this.setting = "CAMERA_PERSPECTIVE";
@@ -16,9 +16,9 @@ type Camera {
   }
 }
 
-!!
+!
 ! Player .
-!!
+!
 type Player {
   init(str username, real[3] pos, Color color) {
     this.server = Client("tcp://localhost:25565");
diff --git a/test/add.zre b/test/add.zrl
similarity index 100%
rename from test/add.zre
rename to test/add.zrl
diff --git a/test/fib.zre b/test/fib.zrl
similarity index 100%
rename from test/fib.zre
rename to test/fib.zrl
diff --git a/test/loop.zre b/test/loop.zrl
similarity index 100%
rename from test/loop.zre
rename to test/loop.zrl
diff --git a/test/simple.zre b/test/simple.zrl
similarity index 100%
rename from test/simple.zre
rename to test/simple.zrl