diff --git a/compiler/gen_wasm/src/backend.rs b/compiler/gen_wasm/src/backend.rs
index 6f7dfcb884..0eebe41121 100644
--- a/compiler/gen_wasm/src/backend.rs
+++ b/compiler/gen_wasm/src/backend.rs
@@ -10,18 +10,12 @@ use roc_module::symbol::Symbol;
 use roc_mono::ir::{CallType, Expr, JoinPointId, Literal, Proc, Stmt};
 use roc_mono::layout::{Builtin, Layout, UnionLayout};
 
+use crate::*;
+
 // Don't allocate any constant data at address zero or near it. Would be valid, but bug-prone.
 // Follow Emscripten's example by using 1kB (4 bytes would probably do)
 const UNUSED_DATA_SECTION_BYTES: u32 = 1024;
 
-const PTR_SIZE: u32 = 4;
-const PTR_TYPE: ValueType = ValueType::I32;
-
-const ALIGN_1: u32 = 0;
-const ALIGN_2: u32 = 1;
-const ALIGN_4: u32 = 2;
-const ALIGN_8: u32 = 3;
-
 #[derive(Clone, Copy, Debug)]
 struct LocalId(u32);
 
diff --git a/compiler/gen_wasm/src/lib.rs b/compiler/gen_wasm/src/lib.rs
index e814a7a3b7..c807296304 100644
--- a/compiler/gen_wasm/src/lib.rs
+++ b/compiler/gen_wasm/src/lib.rs
@@ -3,7 +3,7 @@ pub mod from_wasm32_memory;
 
 use bumpalo::Bump;
 use parity_wasm::builder;
-use parity_wasm::elements::Internal;
+use parity_wasm::elements::{Internal, ValueType};
 
 use roc_collections::all::{MutMap, MutSet};
 use roc_module::symbol::{Interns, Symbol};
@@ -12,6 +12,16 @@ use roc_mono::layout::LayoutIds;
 
 use crate::backend::WasmBackend;
 
+const PTR_SIZE: u32 = 4;
+const PTR_TYPE: ValueType = ValueType::I32;
+
+pub const ALIGN_1: u32 = 0;
+pub const ALIGN_2: u32 = 1;
+pub const ALIGN_4: u32 = 2;
+pub const ALIGN_8: u32 = 3;
+
+pub const STACK_POINTER_GLOBAL_ID: u32 = 0;
+
 pub struct Env<'a> {
     pub arena: &'a Bump, // not really using this much, parity_wasm works with std::vec a lot
     pub interns: Interns,