diff --git a/Cargo.toml b/Cargo.toml
index 378ebc1..41166a3 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -9,14 +9,14 @@ crate-type=["cdylib"]
 [profile.release]
 debug = false
 codegen-units = 1
-opt-level = "z" #optimize for size
+opt-level = "s" #optimize for size
 lto = true
 strip = true
 
 [profile.dev]
 debug = true
 codegen-units = 1
-opt-level = "z" #optimize for size
+opt-level = "s" #optimize for size
 lto = true
 
 [dependencies]
diff --git a/build.sh b/build.sh
index 0536fe4..82db915 100755
--- a/build.sh
+++ b/build.sh
@@ -1,7 +1,7 @@
 #!/bin/bash
 set -e
 wasm-pack build --target web --release --no-typescript
-wasm-opt -Oz -o pkg/integral_site_bg_2.wasm pkg/integral_site_bg.wasm
+wasm-opt -Os -o pkg/integral_site_bg_2.wasm pkg/integral_site_bg.wasm
 mv pkg/integral_site_bg_2.wasm pkg/integral_site_bg.wasm
 llvm-strip --strip-all pkg/integral_site_bg.wasm