diff --git a/Makefile b/Makefile
index 5d3aa81..1d2791b 100644
--- a/Makefile
+++ b/Makefile
@@ -3,5 +3,5 @@ default: frontend/frontend.js dist-newstyle/build/x86_64-linux/ghc-9.6.5/souples
 dist-newstyle/build/x86_64-linux/ghc-9.6.5/souplesse-0.1.0.0/x/souplesse/build/souplesse/souplesse: app/*.hs lib/*.hs
 	cabal build
 
-frontend/frontend.js: frontend/src/Main.elm
+frontend/frontend.js: frontend/src/Main.elm frontend/src/Lib.elm frontend/src/Point.elm
 	elm make --output=$@ $<