diff --git a/src/lib/selector.c b/src/lib/selector.c
index 87e24b1e9..9907e91bb 100644
--- a/src/lib/selector.c
+++ b/src/lib/selector.c
@@ -238,7 +238,7 @@ ncselector* ncselector_create(ncplane* n, const ncselector_options* opts){
   }
   unsigned itemcount = 0;
   if(opts->flags > 0){
-    logwarn("Provided unsupported flags %016jx\n", (uintmax_t)opts->flags);
+    logwarn("Provided unsupported flags %016" PRIx64 "\n", opts->flags);
   }
   if(opts->items){
     for(const struct ncselector_item* i = opts->items ; i->option ; ++i){
@@ -834,7 +834,7 @@ ncmultiselector* ncmultiselector_create(ncplane* n, const ncmultiselector_option
     opts = &zeroed;
   }
   if(opts->flags > 0){
-    logwarn("Provided unsupported flags %016jx\n", (uintmax_t)opts->flags);
+    logwarn("Provided unsupported flags %016" PRIx64 "\n", opts->flags);
   }
   unsigned itemcount = 0;
   if(opts->items){