diff --git a/options.c b/options.c
index ce95513..593f717 100644
--- a/options.c
+++ b/options.c
@@ -1050,6 +1050,16 @@
 	return 0;
 }
 
+static int str_dedupe_cb(void *data, unsigned long long *il)
+{
+	struct thread_data *td = data;
+
+	td->flags |= TD_F_COMPRESS;
+	td->o.dedupe_percentage = *il;
+	td->o.refill_buffers = 1;
+	return 0;
+}
+
 static int str_verify_pattern_cb(void *data, const char *input)
 {
 	struct thread_data *td = data;
@@ -3257,6 +3267,18 @@
 		.group	= FIO_OPT_G_IO_BUF,
 	},
 	{
+		.name	= "dedupe_percentage",
+		.lname	= "Dedupe percentage",
+		.type	= FIO_OPT_INT,
+		.cb	= str_dedupe_cb,
+		.maxval	= 100,
+		.minval	= 0,
+		.help	= "Percentage of buffers that are dedupable",
+		.interval = 1,
+		.category = FIO_OPT_C_IO,
+		.group	= FIO_OPT_G_IO_BUF,
+	},
+	{
 		.name	= "clat_percentiles",
 		.lname	= "Completion latency percentiles",
 		.type	= FIO_OPT_BOOL,