diff --git a/samples/sensor/fxos8700/prj_accel.conf b/samples/sensor/fxos8700/prj_accel.conf
index d64c1732dc3..4661beb2099 100644
--- a/samples/sensor/fxos8700/prj_accel.conf
+++ b/samples/sensor/fxos8700/prj_accel.conf
@@ -4,5 +4,6 @@ CONFIG_I2C=y
 CONFIG_SENSOR=y
 CONFIG_FXOS8700=y
 CONFIG_SENSOR_LOG_LEVEL_DBG=y
+CONFIG_CBPRINTF_FP_SUPPORT=y
 CONFIG_FXOS8700_MODE_ACCEL=y
 CONFIG_FXOS8700_TRIGGER_OWN_THREAD=y