1 files changed, 1 insertions, 1 deletions

diff --git a/src/category.c b/src/category.c
index 4e89c98a027..c31c1961e04 100644
--- a/src/category.c
+++ b/src/category.c
@@ -364,7 +364,7 @@ then delete CATEGORY from the category set instead of adding it.  */)
   while (start <= end)
     {
       category_set = char_table_ref_and_range (table, start, &from, &to);
-      if (CATEGORY_MEMBER (category, category_set) != NILP (reset))
+      if (CATEGORY_MEMBER (XFASTINT (category), category_set) != NILP (reset))
         {
           category_set = Fcopy_sequence (category_set);
           SET_CATEGORY_SET (category_set, category, set_value);