diff --git a/build.sh b/build.sh
index cb1091114..17463e49b 100755
--- a/build.sh
+++ b/build.sh
@@ -1,3 +1,10 @@
-#!/bin/sh
+#!/bin/bash -eu
 
-GOBIN=$PWD/`dirname $0`/bin go install -v $PWD/`dirname $0`/cmd/...
+# Put installed packages into ./bin
+export GOBIN=$PWD/`dirname $0`/bin
+
+# We can't build all packages ala ./cmd/... because ./cmd/dendritejs only works for WASM
+find ./cmd -mindepth 1 -maxdepth 1 -type d | grep -v dendritejs | xargs go install -v
+
+# worth compiling it to make sure it's happy though, and who knows maybe they do want to build for wasm ;)
+GOOS=js GOARCH=wasm go build -o dendritejs.wasm $PWD/`dirname $0`/cmd/dendritejs
\ No newline at end of file