diff --git a/src/librtlsdr.c b/src/librtlsdr.c
index 622f985..9cca93c 100644
--- a/src/librtlsdr.c
+++ b/src/librtlsdr.c
@@ -351,7 +351,7 @@ static rtlsdr_dongle_t known_devices[] = {
 	{ 0x1f4d, 0xd803, "PROlectrix DV107669" },
 };
 
-#define DEFAULT_BUF_NUMBER	15
+#define DEFAULT_BUF_NUMBER	1
 #define DEFAULT_BUF_LENGTH	(16 * 32 * 512)
 
 #define DEF_RTL_XTAL_FREQ	28800000