diff --git a/src/add-ons/kernel/file_systems/nfs4/NFS4Object.cpp b/src/add-ons/kernel/file_systems/nfs4/NFS4Object.cpp
index 4bb600f2ec..c7f7827a2e 100644
--- a/src/add-ons/kernel/file_systems/nfs4/NFS4Object.cpp
+++ b/src/add-ons/kernel/file_systems/nfs4/NFS4Object.cpp
@@ -17,6 +17,8 @@
 static inline bigtime_t
 RetryDelay(uint32 attempt, uint32 leaseTime = 0)
 {
+	attempt = min_c(attempt, sizeof(bigtime_t) * 8);
+
 	bigtime_t delay = (1 << (attempt - 1)) * 100000;
 	if (leaseTime != 0)
 		delay = min_c(delay, sSecToBigTime(leaseTime));