diff --git a/nimble/host/src/ble_gap.c b/nimble/host/src/ble_gap.c
index 4928454d4..9c6db09d4 100644
--- a/nimble/host/src/ble_gap.c
+++ b/nimble/host/src/ble_gap.c
@@ -320,7 +320,7 @@ ble_gap_log_duration(int32_t duration_ms)
     if (duration_ms == BLE_HS_FOREVER) {
         BLE_HS_LOG(INFO, "duration=forever");
     } else {
-        BLE_HS_LOG(INFO, "duration=%dms", duration_ms);
+        BLE_HS_LOG(INFO, "duration=%dms", (int)duration_ms);
     }
 }
 #endif