diff --git a/Makefile b/Makefile
index 900f2e202..adf8ecbac 100644
--- a/Makefile
+++ b/Makefile
@@ -6,6 +6,7 @@ limbo:
 .PHONY: limbo
 
 limbo-wasm:
+	rustup target add wasm32-wasi
 	cargo build --package limbo-wasm --target wasm32-wasi
 .PHONY: limbo-wasm