diff --git a/build.sh b/build.sh
index a8cbf48..6419bc0 100755
--- a/build.sh
+++ b/build.sh
@@ -4,6 +4,8 @@ set -e
 rm -fr tmp | true
 rm -fr pkg | true
 
+cargo test
+
 #apply optimizations via wasm-opt
 wasm_opt() {
     wasm-opt -Oz -o pkg/integral_site_bg_2.wasm pkg/integral_site_bg.wasm