diff --git a/lib/install/application.css b/lib/install/application.css
index f1d8c73..3d018a3 100644
--- a/lib/install/application.css
+++ b/lib/install/application.css
@@ -1 +1,5 @@
 @import "tailwindcss";
+
+@source not "../../../log";
+@source not "../../../tmp";
+@source not "../../../storage";
diff --git a/test/integration/user_install_test.sh b/test/integration/user_install_test.sh
index 46b5056..f6f7fa2 100755
--- a/test/integration/user_install_test.sh
+++ b/test/integration/user_install_test.sh
@@ -41,6 +41,9 @@ function install_tailwindcss {
   # TEST: tailwind was installed correctly
   grep -q "<main class=\"container" app/views/layouts/application.html.erb
   test -a app/assets/tailwind/application.css
+  grep -q '@source not "../../../log";' app/assets/tailwind/application.css
+  grep -q '@source not "../../../tmp";' app/assets/tailwind/application.css
+  grep -q '@source not "../../../storage";' app/assets/tailwind/application.css
 }
 
 # Application variation #1 ----------------------------------------