diff --git a/src/drivers/sf0x/sf0x.cpp b/src/drivers/sf0x/sf0x.cpp
index de5dca4a9d..0106261dd6 100644
--- a/src/drivers/sf0x/sf0x.cpp
+++ b/src/drivers/sf0x/sf0x.cpp
@@ -89,7 +89,7 @@ static const int ERROR = -1;
 
 #define SF0X_CONVERSION_INTERVAL	83334
 #define SF0X_TAKE_RANGE_REG		'd'
-#define SF02F_MIN_DISTANCE		0.0f
+#define SF02F_MIN_DISTANCE		0.3f
 #define SF02F_MAX_DISTANCE		40.0f
 
 // designated SERIAL4/5 on Pixhawk