diff --git a/debian/rules b/debian/rules
index 1fff914..637187c 100755
--- a/debian/rules
+++ b/debian/rules
@@ -15,10 +15,8 @@ execute_after_dh_auto_clean:
 execute_after_dh_auto_build:
 	# libjs-qrcodegen
 	cd typescript-javascript && \
-		sh ./build.sh
-
-	cd typescript-javascript && \
-		terser qrcodegen.js -c -m -o qrcodegen.min.js --source-map
+	sh ./build.sh && \
+	terser qrcodegen.js -c -m -o qrcodegen.min.js --source-map
 
 execute_after_dh_auto_install:
 	# libjs-qrcodegen