diff --git a/options.c b/options.c
index ae85988..d46bcbb 100644
--- a/options.c
+++ b/options.c
@@ -1512,6 +1512,23 @@
 		.def	= "0",
 	},
 	{
+		.name	= "random_generator",
+		.type	= FIO_OPT_STR,
+		.off1	= td_var_offset(random_generator),
+		.help	= "Type of random number generator to use",
+		.def	= "tausworthe",
+		.posval	= {
+			  { .ival = "tausworthe",
+			    .oval = FIO_RAND_GEN_TAUSWORTHE,
+			    .help = "Strong Tausworthe generator",
+			  },
+			  { .ival = "lfsr",
+			    .oval = FIO_RAND_GEN_LFSR,
+			    .help = "Variable length LFSR",
+			  },
+		},
+	},
+	{
 		.name	= "random_distribution",
 		.type	= FIO_OPT_STR,
 		.off1	= td_var_offset(random_distribution),