diff --git a/examples/l2fwd-crypto/main.c b/examples/l2fwd-crypto/main.c
index 4d9f8861af..bbdb263143 100644
--- a/examples/l2fwd-crypto/main.c
+++ b/examples/l2fwd-crypto/main.c
@@ -2719,7 +2719,7 @@ initialize_ports(struct l2fwd_crypto_options *options)
 			last_portid = portid;
 		}
 
-		l2fwd_enabled_port_mask |= (1 << portid);
+		l2fwd_enabled_port_mask |= (1ULL << portid);
 		enabled_portcount++;
 	}