fix for new perl (redundant defined)

[librarian.git] / librarian / pdf / wl.cls

diff --git a/librarian/pdf/wl.cls b/librarian/pdf/wl.cls
index 82098ec..30dbf63 100644 (file)
--- a/librarian/pdf/wl.cls
+++ b/librarian/pdf/wl.cls
@@ -276,6 +276,11 @@ Letters={SmallCaps,UppercaseSmallCaps}
         \coverby
     \fi
 
+    \ifdefined\isbn
+        \vspace{.6em}
+        \isbn
+    \fi
+
     \vspace{.6em}
     \emph{Wesprzyj Wolne Lektury!}