diff --git a/Cargo.toml b/Cargo.toml
index 73cc5b2e..df785e3e 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -31,7 +31,7 @@ only_i32 = []       # set INT=i32 (useful for 32-bit systems)
 only_i64 = []       # set INT=i64 (default) and disable support for all other integer types
 no_index = []       # no arrays and indexing
 no_object = []      # no custom objects
-no_function = []    # no script-defined functions
+no_function = [ "no_closure" ]  # no script-defined functions (meaning no closures)
 no_closure = []     # no automatic sharing and capture of anonymous functions to external variables
 no_module = []      # no modules
 internals = []      # expose internal data structures