1 files changed, 1 insertions, 1 deletions
diff --git a/bog.el b/bog.el
index 138a181..c57acba 100644
--- a/bog.el
+++ b/bog.el
@@ -41,7 +41,7 @@
   :group 'org)
 
 (defcustom bog-citekey-format
-  "\\([0-9]*[a-z]+[-a-z]*\\)\\([0-9]\\{4\\}\\)\\([a-z][a-z0-9]*\\)"
+  "\\([a-z]+[-a-z]*\\)\\([0-9]\\{4\\}\\)\\([a-z][a-z0-9]*\\)"
   "Regex used to match study citekey.
 
 By default, this matches any sequence of lower case