1 files changed, 2 insertions, 2 deletions
diff --git a/test/core/gpr/arena_test.cc b/test/core/gpr/arena_test.cc
index 62a3f8bf50..c10d7eaff7 100644
--- a/test/core/gpr/arena_test.cc
+++ b/test/core/gpr/arena_test.cc
@@ -23,11 +23,11 @@
 #include <grpc/support/string_util.h>
 #include <grpc/support/sync.h>
 #include <grpc/support/thd.h>
-#include <grpc/support/useful.h>
 #include <inttypes.h>
 #include <string.h>
 
 #include "src/core/lib/gpr/string.h"
+#include "src/core/lib/gpr/useful.h"
 #include "test/core/util/test_config.h"
 
 static void test_noop(void) { gpr_arena_destroy(gpr_arena_create(1)); }
@@ -86,7 +86,7 @@ static void concurrent_test_body(void* arg) {
   concurrent_test_args* a = static_cast<concurrent_test_args*>(arg);
   gpr_event_wait(&a->ev_start, gpr_inf_future(GPR_CLOCK_REALTIME));
   for (size_t i = 0; i < concurrent_test_iterations(); i++) {
-    *(char*)gpr_arena_alloc(a->arena, 1) = (char)i;
+    *static_cast<char*>(gpr_arena_alloc(a->arena, 1)) = static_cast<char>(i);
   }
 }