diff --git a/lib/krb5/store.c b/lib/krb5/store.c
index 11f61f445..273380967 100644
--- a/lib/krb5/store.c
+++ b/lib/krb5/store.c
@@ -191,7 +191,7 @@ krb5_store_string(krb5_storage *sp, const char *s)
 {
     krb5_data data;
     data.length = strlen(s);
-    data.data = s;
+    data.data = (void*)s;
     return krb5_store_data(sp, data);
 }