diff --git a/makefile b/makefile
index 675e82ad8..e775b0376 100644
--- a/makefile
+++ b/makefile
@@ -5,7 +5,7 @@ build-deps:
 	./build-deps.sh
 
 build: build-deps
-	source ./build.sh
+	./build.sh
 
 test: build
 	dune build @ligo-test