--- a/cupsppd.c
+++ b/cupsppd.c
@@ -236,10 +236,13 @@
 static void
 PPD_dealloc (PPD *self)
 {
-  debugprintf ("- PPD %p (fd %d)\n", self, fileno (self->file));
-
-  if (self->file)
+  if (!self)
+    return;
+  if (self->file) {
+    debugprintf ("- PPD %p (fd %d)\n", self, fileno (self->file));
     fclose (self->file);
+  } else
+    debugprintf ("- PPD %p (no fd)\n", self);
   if (self->ppd)
     ppdClose (self->ppd);
   if (self->conv_from)