diff --git a/src/ui/theme.c b/src/ui/theme.c
index 357a8bb68..c841a0c35 100644
--- a/src/ui/theme.c
+++ b/src/ui/theme.c
@@ -1880,7 +1880,7 @@ debug_print_tokens (PosToken *tokens,
 /**
  * pos_tokenize:
  * @expr: The expression
- * @tokens_p: (out) The resulting tokens
+ * @tokens_p: (out): The resulting tokens
  * @n_tokens_p: (out): The number of resulting tokens
  * @err: (out):  set to the problem if there was a problem