diff --git a/ltr329.c b/ltr329.c
index 62f3869..9b24d78 100644
--- a/ltr329.c
+++ b/ltr329.c
@@ -6,6 +6,9 @@
  */
 #include "ltr329.h"
 
+static int8_t ltr329_read_register (ltr329_cmd_t register_addr, uint8_t *register_data );
+static int8_t ltr329_write_register (ltr329_cmd_t register_addr, uint8_t register_data);
+
 /*
  * Functions to be implemented by user
  */
diff --git a/ltr329.h b/ltr329.h
index 7294a2a..b553737 100644
--- a/ltr329.h
+++ b/ltr329.h
@@ -81,8 +81,8 @@ typedef enum
 	LTR329_MEAS_RATE_2000MS		= 0b00000111
 } ltr329_measurement_rate_t;
 
-static int8_t ltr329_read_register (ltr329_cmd_t register_addr, uint8_t *register_data );
-static int8_t ltr329_write_register (ltr329_cmd_t register_addr, uint8_t register_data);
+/*int8_t ltr329_read_register (ltr329_cmd_t register_addr, uint8_t *register_data );
+int8_t ltr329_write_register (ltr329_cmd_t register_addr, uint8_t register_data);*/
 int8_t ltr329_write_settings (ltr329_gain_t gain, ltr329_als_mode_t mode, ltr329_integration_time_t integ_time, ltr329_measurement_rate_t meas_rate);
 int8_t ltr329_read_settings (ltr329_gain_t *gain, ltr329_als_mode_t *mode, ltr329_integration_time_t *integ_time, ltr329_measurement_rate_t *meas_rate);
 int8_t ltr329_sw_reset( void );