diff --git a/frontend/Cargo.toml b/frontend/Cargo.toml
index cfde12e..3a0194e 100644
--- a/frontend/Cargo.toml
+++ b/frontend/Cargo.toml
@@ -4,6 +4,9 @@ version = "0.1.0"
 authors = ["ajuvercr <arthur.vercruysse@ugent.be>"]
 edition = "2018"
 
+[package.metadata.wasm-pack.profile.release]
+wasm-opt = ["-Oz", "--enable-mutable-globals"]
+
 [lib]
 crate-type = ["cdylib", "rlib"]