diff --git a/boards/atmega256rfr2-xpro/Makefile.features b/boards/atmega256rfr2-xpro/Makefile.features
index a5ea5355af..23ea27bf44 100644
--- a/boards/atmega256rfr2-xpro/Makefile.features
+++ b/boards/atmega256rfr2-xpro/Makefile.features
@@ -2,6 +2,7 @@ CPU = atmega256rfr2
 
 FEATURES_PROVIDED += periph_adc
 FEATURES_PROVIDED += periph_i2c
+FEATURES_PROVIDED += periph_rtc
 FEATURES_PROVIDED += periph_rtt
 FEATURES_PROVIDED += periph_spi
 FEATURES_PROVIDED += periph_timer
diff --git a/boards/avr-rss2/Makefile.features b/boards/avr-rss2/Makefile.features
index a5ea5355af..23ea27bf44 100644
--- a/boards/avr-rss2/Makefile.features
+++ b/boards/avr-rss2/Makefile.features
@@ -2,6 +2,7 @@ CPU = atmega256rfr2
 
 FEATURES_PROVIDED += periph_adc
 FEATURES_PROVIDED += periph_i2c
+FEATURES_PROVIDED += periph_rtc
 FEATURES_PROVIDED += periph_rtt
 FEATURES_PROVIDED += periph_spi
 FEATURES_PROVIDED += periph_timer
diff --git a/boards/derfmega128/Makefile.features b/boards/derfmega128/Makefile.features
index 39c6edee03..c5fd8deec9 100644
--- a/boards/derfmega128/Makefile.features
+++ b/boards/derfmega128/Makefile.features
@@ -2,6 +2,7 @@ CPU = atmega128rfa1
 
 FEATURES_PROVIDED += periph_adc
 FEATURES_PROVIDED += periph_i2c
+FEATURES_PROVIDED += periph_rtc
 FEATURES_PROVIDED += periph_rtt
 FEATURES_PROVIDED += periph_spi
 FEATURES_PROVIDED += periph_timer
diff --git a/boards/derfmega256/Makefile.features b/boards/derfmega256/Makefile.features
index a5ea5355af..23ea27bf44 100644
--- a/boards/derfmega256/Makefile.features
+++ b/boards/derfmega256/Makefile.features
@@ -2,6 +2,7 @@ CPU = atmega256rfr2
 
 FEATURES_PROVIDED += periph_adc
 FEATURES_PROVIDED += periph_i2c
+FEATURES_PROVIDED += periph_rtc
 FEATURES_PROVIDED += periph_rtt
 FEATURES_PROVIDED += periph_spi
 FEATURES_PROVIDED += periph_timer
diff --git a/boards/mega-xplained/Makefile.features b/boards/mega-xplained/Makefile.features
index 0c094dafc5..8a641fbc24 100644
--- a/boards/mega-xplained/Makefile.features
+++ b/boards/mega-xplained/Makefile.features
@@ -3,6 +3,7 @@ CPU = atmega1284p
 # Put defined MCU peripherals here (in alphabetical order)
 FEATURES_PROVIDED += periph_adc
 FEATURES_PROVIDED += periph_i2c
+FEATURES_PROVIDED += periph_rtc
 FEATURES_PROVIDED += periph_rtt
 FEATURES_PROVIDED += periph_spi
 FEATURES_PROVIDED += periph_timer
diff --git a/boards/microduino-corerf/Makefile.features b/boards/microduino-corerf/Makefile.features
index c3cf0af46b..fa4a875f7b 100644
--- a/boards/microduino-corerf/Makefile.features
+++ b/boards/microduino-corerf/Makefile.features
@@ -3,6 +3,7 @@ CPU = atmega128rfa1
 # This board is based on an atmega CPU, thus import the features from it
 FEATURES_PROVIDED += periph_adc
 FEATURES_PROVIDED += periph_i2c
+FEATURES_PROVIDED += periph_rtc
 FEATURES_PROVIDED += periph_rtt
 FEATURES_PROVIDED += periph_spi
 FEATURES_PROVIDED += periph_timer