1 files changed, 6 insertions, 1 deletions
diff --git a/README.md b/README.md
index 432100b..ad32264 100644
--- a/README.md
+++ b/README.md
@@ -94,7 +94,9 @@ with helpful error messages.
 integer that will be filled with the stack index of the argument.
 
 Please note that, due to technical limitations, this function can 
-only parse up to 255 arguments.
+only parse up to 255 arguments. This function may mutate any 
+preexisting contents of the variables passed to contain the 
+arguments.
 
 ```c
 int some_lua_binding(lua_State *L)
@@ -132,6 +134,9 @@ actually used.
 If none of the argument lists match the provided arguments, this 
 function throws an error.
 
+This function may mutate preexisting data in the variables passed to 
+store arguments.
+
 ```c
 int overloaded_lua_binding(lua_State *L)
 {