diff --git a/installsystems/image.py b/installsystems/image.py
index 780e300e9a4d090ee8ce9d746f647dbc4774d592..84992986e603724a56f1b0e40fec84a3d7986850 100644
--- a/installsystems/image.py
+++ b/installsystems/image.py
@@ -617,7 +617,10 @@ class PackageImage(Image):
         '''
         Display filename in the tarball
         '''
-        for filename in self._tarball.getnames(glob_pattern=filename):
+        filelist = self._tarball.getnames(glob_pattern=filename)
+        if len(filelist) == 0:
+            warn("No file matching %s" % filename)
+        for filename in filelist:
             arrow(filename)
             out(self._tarball.get_str(filename))