diff --git a/Cargo.toml b/Cargo.toml
index 888c739..77ac230 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -56,6 +56,7 @@ tracing = { version = "0.1.37", optional = true }
 tracing-opentelemetry = { version = "0.20.0", optional = true }
 tracing-subscriber = { version = "0.3.17", optional = true, features = ["env-filter"] }
 walkdir = { version = "2.3.3", optional = true }
+wasm-bindgen = { version = "0.2.89", optional = true }
 
 [build-dependencies]
 walkdir = "2.3.3"
@@ -66,7 +67,7 @@ compare = ["tokio/process", "tokio/macros"]
 foreign_document_test = ["compare", "dep:futures", "tokio/sync", "dep:walkdir", "tokio/process"]
 tracing = ["dep:opentelemetry", "dep:opentelemetry-otlp", "dep:opentelemetry-semantic-conventions", "dep:tokio", "dep:tracing", "dep:tracing-opentelemetry", "dep:tracing-subscriber"]
 event_count = []
-wasm = ["dep:serde"]
+wasm = ["dep:serde", "dep:wasm-bindgen"]
 
 # Optimized build for any sort of release.
 [profile.release-lto]
diff --git a/src/bin_wasm.rs b/src/bin_wasm.rs
index 2496df2..e5a9427 100644
--- a/src/bin_wasm.rs
+++ b/src/bin_wasm.rs
@@ -1,6 +1,7 @@
 #![no_main]
+use wasm_bindgen::prelude::wasm_bindgen;
 
-#[no_mangle]
-pub extern "C" fn add(left: usize, right: usize) -> usize {
+#[wasm_bindgen]
+pub fn add(left: usize, right: usize) -> usize {
     left + right
 }