diff --git a/src/instructions/mod.rs b/src/instructions/mod.rs
index 342296c..6b88ddd 100644
--- a/src/instructions/mod.rs
+++ b/src/instructions/mod.rs
@@ -7,6 +7,11 @@ use crate::push::state::PushState;
 
 #[macro_use]
 pub mod macros {
+    #[macro_export]
+    macro_rules! type_map {
+        ($x:ident) => {};
+    }
+
     /// A macro that makes a push instruction given: the name of the input stack to use,
     /// the name of the output stack, an internal function to call, the type of a function,
     /// and the arity of the internal function call.