diff --git a/plugins/nf-quilt/src/main/nextflow/quilt/QuiltProduct.groovy b/plugins/nf-quilt/src/main/nextflow/quilt/QuiltProduct.groovy
index 6a14192b..25318104 100644
--- a/plugins/nf-quilt/src/main/nextflow/quilt/QuiltProduct.groovy
+++ b/plugins/nf-quilt/src/main/nextflow/quilt/QuiltProduct.groovy
@@ -80,11 +80,17 @@ ${meta['workflow']['stats']['processes']}
     static void writeString(String text, QuiltPackage pkg, String filename) {
         String dir = pkg.packageDest()
         Path path  = Paths.get(dir, filename.split('/') as String[])
+        File parent = path.getParent().toFile()
+        if (parent != null && !parent.exists() && !parent.mkdirs()) {
+            throw new IllegalStateException("Couldn't create dir: " + parent);
+        }
+
         try {
             Files.write(path, text.bytes)
         }
         catch (Exception e) {
-            log.error("writeString: cannot write `$text` to `$path` for `${pkg}`")
+            log.error("writeString[${e.getMessage()}]: fail write `$path` for `${pkg}`")
+            e.printStackTrace()
         }
     }
 
diff --git a/plugins/nf-quilt/src/test/nextflow/quilt/jep/QuiltPackageTest.groovy b/plugins/nf-quilt/src/test/nextflow/quilt/jep/QuiltPackageTest.groovy
index 87a273f8..fdf77d74 100644
--- a/plugins/nf-quilt/src/test/nextflow/quilt/jep/QuiltPackageTest.groovy
+++ b/plugins/nf-quilt/src/test/nextflow/quilt/jep/QuiltPackageTest.groovy
@@ -91,7 +91,6 @@ class QuiltPackageTest extends QuiltSpecification {
         String filename = 'test.txt'
         Path installPath = pkg.packageDest()
         Path tempFile = File.createTempFile('test', '.txt').toPath()
-        println("tempFile: "+tempFile);
         Path installedFile = Paths.get(installPath.toString(), filename)
         expect:
         Files.exists(tempFile)