diff --git a/src/core/lib/iomgr/timer_generic.cc b/src/core/lib/iomgr/timer_generic.cc
index 70417d69b63..008d37119a9 100644
--- a/src/core/lib/iomgr/timer_generic.cc
+++ b/src/core/lib/iomgr/timer_generic.cc
@@ -716,7 +716,8 @@ static grpc_timer_check_result timer_check(grpc_millis* next) {
             "TIMER CHECK BEGIN: now=%" PRId64 " next=%s tls_min=%" PRId64
             " glob_min=%" PRId64,
             now, next_str, min_timer,
-            gpr_atm_no_barrier_load((gpr_atm*)(&g_shared_mutables.min_timer)));
+            static_cast<grpc_millis>(gpr_atm_no_barrier_load(
+                (gpr_atm*)(&g_shared_mutables.min_timer))));
 #else
     gpr_log(GPR_INFO, "TIMER CHECK BEGIN: now=%" PRId64 " next=%s min=%" PRId64,
             now, next_str, min_timer);