diff --git a/justfile b/justfile
index a7960a9..8b78ec6 100644
--- a/justfile
+++ b/justfile
@@ -21,6 +21,7 @@ test-project-generation-on-future-odra:
     just test-testproject
 
 test-testproject:
+    cd testproject && rustup target add wasm32-unknown-unknown
     cd testproject && cargo odra generate -c plascoin
     cd testproject && cargo odra test
     cd testproject && cargo odra test -b casper