diff --git a/lib/krb5/krb5.h b/lib/krb5/krb5.h
index 37b5cfba1..07e0e9a30 100644
--- a/lib/krb5/krb5.h
+++ b/lib/krb5/krb5.h
@@ -227,7 +227,7 @@ struct krb5_cc_ops;
 typedef void *krb5_cc_cursor;
 
 typedef struct krb5_ccache_data {
-    struct krb5_cc_ops *ops;
+    const struct krb5_cc_ops *ops;
     krb5_data data;
 }krb5_ccache_data;