Fix type

2 files changed, 2 insertions, 2 deletions

diff --git a/src/core/lib/backoff/backoff.c b/src/core/lib/backoff/backoff.c
index e964af8f39..b34c4a852b 100644
--- a/src/core/lib/backoff/backoff.c
+++ b/src/core/lib/backoff/backoff.c
@@ -34,7 +34,7 @@ void grpc_backoff_init(grpc_backoff *backoff,
 
 grpc_millis grpc_backoff_begin(grpc_exec_ctx *exec_ctx, grpc_backoff *backoff) {
   backoff->current_timeout_millis = backoff->initial_connect_timeout;
-  const int64_t first_timeout =
+  const grpc_millis first_timeout =
       GPR_MAX(backoff->current_timeout_millis, backoff->min_timeout_millis);
   return grpc_exec_ctx_now(exec_ctx) + first_timeout;
 }
diff --git a/src/core/lib/backoff/backoff.h b/src/core/lib/backoff/backoff.h
index c0798bbe5b..32efdb9d92 100644
--- a/src/core/lib/backoff/backoff.h
+++ b/src/core/lib/backoff/backoff.h
@@ -37,7 +37,7 @@ typedef struct {
   uint32_t rng_state;
 
   /// current retry timeout in milliseconds
-  int64_t current_timeout_millis;
+  grpc_millis current_timeout_millis;
 } grpc_backoff;
 
 /// Initialize backoff machinery - does not need to be destroyed