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-rw-r--r--grc/gui/PropsDialog.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/grc/gui/PropsDialog.py b/grc/gui/PropsDialog.py
index 6bf2745a4e..1e0a10b86b 100644
--- a/grc/gui/PropsDialog.py
+++ b/grc/gui/PropsDialog.py
@@ -217,7 +217,7 @@ class PropsDialog(Gtk.Dialog):
pos = buf.get_end_iter()
# Add link to wiki page for this block, at the top, as long as it's not an OOT block
- if self._block.category[0] == "Core":
+ if self._block.category and self._block.category[0] == "Core":
note = "Wiki Page for this Block: "
prefix = self._config.wiki_block_docs_url_prefix
suffix = self._block.label.replace(" ", "_")