diff --git a/drivers/include/tcs37727.h b/drivers/include/tcs37727.h
index a9b228bce3ca..a435f4578beb 100644
--- a/drivers/include/tcs37727.h
+++ b/drivers/include/tcs37727.h
@@ -47,10 +47,12 @@ extern "C"
  * @{
  */
 /**
- * @brief   Default RGBC integration time.
+ * @brief   Default RGBC integration time in microseconds.
+ *
+ * Refer section "RGBC Time Register" in datasheet for more information.
  */
-#ifndef TCS37727_ATIME_DEFAULT
-#define TCS37727_ATIME_DEFAULT  200000
+#ifndef CONFIG_TCS37727_ATIME_DEFAULT
+#define CONFIG_TCS37727_ATIME_DEFAULT  200000
 #endif
 /** @} */
 
diff --git a/drivers/tcs37727/include/tcs37727_params.h b/drivers/tcs37727/include/tcs37727_params.h
index a3a6a9ba847d..664481caaecc 100644
--- a/drivers/tcs37727/include/tcs37727_params.h
+++ b/drivers/tcs37727/include/tcs37727_params.h
@@ -38,7 +38,7 @@ extern "C" {
 #define TCS37727_PARAM_ADDR         (TCS37727_I2C_ADDRESS)
 #endif
 #ifndef TCS37727_PARAM_ATIME
-#define TCS37727_PARAM_ATIME        (TCS37727_ATIME_DEFAULT)
+#define TCS37727_PARAM_ATIME        (CONFIG_TCS37727_ATIME_DEFAULT)
 #endif
 
 #ifndef TCS37727_PARAMS