diff --git a/libraries/AP_HAL_Linux/I2CDevice.cpp b/libraries/AP_HAL_Linux/I2CDevice.cpp
index 03c79629c4..50ea2505de 100644
--- a/libraries/AP_HAL_Linux/I2CDevice.cpp
+++ b/libraries/AP_HAL_Linux/I2CDevice.cpp
@@ -36,6 +36,7 @@
 #ifndef I2C_SMBUS_BLOCK_MAX
 #include <linux/i2c.h>
 #endif
+#include <stdio.h>
 #include <stdlib.h>
 #include <sys/ioctl.h>
 #include <sys/stat.h>