diff --git a/lib/math/factorial/factorial.snow b/lib/math/factorial/factorial.snow
index 82a6dbf..61d51a8 100644
--- a/lib/math/factorial/factorial.snow
+++ b/lib/math/factorial/factorial.snow
@@ -1,7 +1,7 @@
 module: Math
     function: main
-        parameter:
-        return_type: int
+        params:
+        returns: int
         body:
             Math.factorial(6)
             return 0
@@ -9,9 +9,9 @@ module: Math
     end function
 
     function: factorial
-        parameter:
+        params:
             declare n:int
-        return_type: int
+        returns: int
         body:
             declare num1:int = 1
             loop:
diff --git a/lib/os/OS.snow b/lib/os/OS.snow
index 6026d43..1982627 100644
--- a/lib/os/OS.snow
+++ b/lib/os/OS.snow
@@ -1,9 +1,9 @@
 module: os
     import: os
     function: print
-        parameter:
+        params:
             declare i1: int
-        return_type: void
+        returns: void
         body:
             syscall("PRINT",i1)
         end body
diff --git a/lib/test/Dead_loop.snow b/lib/test/Dead_loop.snow
index f2a1a98..7a40d25 100644
--- a/lib/test/Dead_loop.snow
+++ b/lib/test/Dead_loop.snow
@@ -1,6 +1,6 @@
 function: main
-    parameter:
-    return_type: int
+    params:
+    returns: int
     body:
         loop:
             init: